Across:
1 Easily understand someone’s real motivations (READ LIKE A BOOK) to flick through (READ) link (L-) to IKEA (-IKE A) manual (BOOK) (READ LIKE A BOOK),
10 Game in (game in = ENIGMA-) wild (= anagram indicator) saved primarily (saved primarily = -S) (ENIGMAS) by those posing the difficult questions (ENIGMAS),
11 Swallow (BELIEVE) and insect (bee = BE -E) flying around live (live = -LIEV-) action (= anagram indicator) (BELIEVE),
12 A waste of essential liquid (DRIP) in Dublin (D-) and Split (-RIP) (DRIP),
13 Equipped (READY) to open 36 across (‘ready to pounce’ = READY),
15 Take capers off crispbread (take ‘capers’ off ‘crispbread’ = ribd = BIRD) and swallow (BIRD),
17 Nimble type (spry) loses head (s) (‘spry’ without ‘s’ = PRY) with snoop (PRY),
19 Philosophy (Tao = TA-O-) about race (-TT- race) origins initially (‘origins’ initially = -O-) (TATTOO) will leave its mark (TATTOO),
21 Mix up the twist (TANGLE) for a gent (a gent = TANG-E) dancing (= anagram indicator) around at the start of the Loco-Motion (start of the ‘Loco-Motion’ = -L-) (TANGLE),
22 Read someone the riot act (reprimand = UPBRAID) in pub (pub = UPB-) drunk (= anagram indicator) before (= positional indicator) police surprise visit (-RAID) (UPBRAID),
23 Point (compass point east = E-) is – it’s wrong (-X-) to drink (-PORT) (EXPORT) what’s sold overseas (EXPORT),
25 Writer (PENCIL) gets stick for putting things down (PENCIL),
27 Take advantage of (USE) upheaval (= reversal indicator) in Trades Union (in ‘Trades Union’ = esu = USE),
29 Hauled up (= reversal indicator) inside tunnel diversion (inside tunnel diversion’ = eldi = IDLE), as out of service (IDLE),
30 Where you might find a stout type (stout drink = ON TAP) for Panto (Panto = ON TAP) adaptation (= anagram indicator),
31 Content to square accounts (content to ‘square accounts’ = area = AREA) in the neighbourhood (AREA),
34 Zero evidence (NO TRACE) of New (N-) Order (-N) heading for TradFest (heading for ‘tradfest’ = -T-) with Irish people? (-RACE) (NO TRACE),
35 East Berlin dismisses ban (‘East Berlin’ dismisses ‘ban’ = esterli = STERILE), as it’s unproductive (STERILE),
36 Leaders of ERG and dissension (leaders of ‘ERG and dissension’ = -EAD-) in Tory (Tory = R-Y TO) madness (= anagram indicator) to attack (POUNCE) (READY TO POUNCE) eager primed, catty type, hiding in long grass (READY TO POUNCE).
Down:
2 A snobby character (ELITIST) with title is (title is = ELITIST) wrong (= anagram indicator),
3 Trash from hard times (‘trash’ from ‘hard times’ = dime = DIME) is worth something in America (DIME),
4 One (I-) is spent (spent = -NSTEP) travelling (= anagram indicator) (INSTEP) on foot (INSTEP),
5 Closes the mechanism (closes ‘the mechanism’ = EM-) and frame (-BODY) (EMBODY) to take it in (EMBODY),
6 Signal (BELL) for both sides in beach volleyball (both sides in ‘beach volleyball’ = BELL),
7 Frank (OPEN-) in (-IN-) middle age (middle ‘age’ = -G) (OPENING) is getting the show off the ground (OPENING),
8 Has a look at the stars (READS THE SIGNS) and realises there is a problem (READS THE SIGNS),
9 What future supplier is expected to do (READ TEA LEAVES) to compete with one of those looking into their crystal ball (READ TEA LEAVES),
14 Support from The Chair (ARMREST) for Frenchman (Monsieur = -M-) in detention (arrest = AR-REST) (ARMREST),
16 Regret (MOURN) mixing up (= anagram indicator) Munro (Munro = MOURN),
18 Some characters committed a crime (some characters ‘committed a crime’ = tedac) setting up (= reversal indicator) (tedac = CADET) trainee officer (CADET),
20 Make up your mind (OPT) with shots going off in hot spots (‘shots’ going off in ‘hot spots’ = pot = OPT),
21 Bit of advice (TIP) for turning up (= reversal indicator) in hospital (in ‘hospital’ = pit = TIP),
24 Shady type (PALETTE) of pressure (P-) unsettled (= anagram indicator) Attlee (Attlee = -ALETTE) (PALETTE),
26 Queen (queen / CARD-) opens in American coliseum (opens in American coliseum = -IAC) (CARDIAC) with Achy Breaky Heart? (CARDIAC),
27 AGM comes out of arguments (‘AGM’ comes out of ‘arguments’ = ruents = UNREST) and trouble (UNREST),
28 Really relishes (EATS UP) making (= anagram indicator) tea (tea = EAT-) to drink (sup = -S-UP) (EATS UP),
32 Hook (HAND) and Sutherland dismiss result (‘Sutherland’ dismiss ‘result’ = hand = HAND),
33 Fragment of YouTube audition (fragment of ‘YouTube audition = BEAU) of Parisian lover (BEAU).