Across:
1 Medical check (SECOND OPINION) offered by doctor, the next one (SECOND OPINION),
10 Volume (EDITION) is an issue? (EDITION),
11 A (-A-) driver would swing for it (-TEE) after (= positional indicator) some of the journey (LEG-) (LEGATEE) with one from the estate? (get legacy from estate/will = LEGATEE),
12 Rows (OARS) with co-authors losing touch (‘co-authors’ losing ‘touch’ = oars = OARS)
13 Fragment of Jerusalem ailments (some “Jerusalem ailments” = EMAIL) read online (EMAIL),
15 Game for Arabians (game for Arabians/horses = POLO) and some escapologists (some ‘escapologists’ = POLO),
17 Make up your mind (OPT) for half of those in the bar (half of the ‘optics’ in the bar = OPT),
19 Papers (ID papers = DI-) review (= reversal indicator) most of (l) The Short (‘small’ without ‘l’ = -SMAL) (DISMAL) – it’s dark (DISMAL),
21 New (= anagram indicator) dances (dances = ASCEND) take off (ASCEND),
22 How are they the first on all sides today (‘second’ on four sides of today’s grid = SECONDS) and they’re not winners? (SECONDS),
23 Writer (E-D) admits being behind with deadline (-LATE-) (ELATED) for High Spirits (ELATED),
25 Half out of duty (half out of ‘duty’ = DU-), girl (Anne = -ENNA) returns (= reversal indicator) (DUENNA) to keep an eye on little ones in Madrid (Spanish governess/child-minder = DUENNA),
27 Bound (bound/jump = HOP) to include those concealed by Sancho Panza (include those concealed by ‘Sancho Panza’ = HOP),
29 Heats off hotplates (‘heats’ off/ taken from ‘hotplates’ = otpl = PLOT) – what a novel idea? (PLOT),
30 Is (-IS-) lost (-L-) in the foreign (the = le = L-E) (LISLE) thread? (cotton thread = LISLE),
31 One of the farming types (STUD farm) supports Partition (STUD partition),
34 Turns up (= reversal indicator) on (on = NO-) night (night = -THING) shift (= anagram indicator) (NOTHING) for the love of the game (‘love’ in game of tennis = NOTHING),
35 Bake (= anagram indicator) a gratin (a gratin = GRANITA) for Italian dessert (GRANITA),
36 Brief moment (SECOND) for The Wire’s (STRINGS on tennis racket) (SECOND STRINGS) understudies (SECOND STRINGS).
Down:
2 Regime (regime = EMIGRE-) change (= anagram indicator) is central to reasons (central to ‘reasons’ = -S) (EMIGRES) for those who took flight (éMIGRéS),
3 Old (O-) backing (= reversal indicator) singer (diva) isn’t finished (a) (‘diva’ without ‘a’ = DIV = -VID) (OVID) with linesman from Rome (linesman/poet OVID),
4 Party (D-O) admits lots (many = -YNAM-) retiring (= reversal indicator) (DYNAMO) could be full of energy (DYNAMO),
5 Where The Minister gets to spread the gospel (PULPIT) – it (-IT) makes the papers (PULP-) from the start (= positional indicator) (PULPIT),
6 Old horses (NAGS) produced yearlings Riley dismissed? (‘yearlings’ ‘Riley’ dismissed/ ‘yearlings’ without ‘Riley’ = NAGS),
7 A way (away = OUT-) to raise hands (-VOTE) (OUTVOTE) and to beat them? (OUTVOTE),
8 Of course, this is just more (SECOND HELPING) of what Oliver was looking for (Oliver in Oliver Twist was looking for SECOND HELPING),
9 Has been on the road a long time and is susceptible to breakdown (SECOND-HAND CAR) as is Juncker (“Juncker” = “junker” = SECOND-HAND CAR) reportedly? (= homophone indicator),
14 A (A-) rugby player (-PROP-) is so (so = -OS) upset (= reversal indicator) (APROPOS) – how appropriate is that to a particular situation? (APROPOS),
16 Those responsible for atmosphere (GASES) covered up partying as escapism (covered up ‘partying as escapism’ = GASES),
18 Put out (ISSUE) by what the parents produced (offspring/child/ ISSUE),
20 Ushered in (LED), as involved in subtle deception (involved in ‘subtle deception’ = LED),
21 Throw in (ADD) sample of bread dough (sample of ‘bread dough’ = ADD),
24 Somehow (= anagram indicator) lose Pat (lose Pat = APOSTLE) Thomas, for one (Thomas was one/ APOSTLE),
26 Catching (NETTING) odd (= anagram indicator) intent (intent = NETTIN-) from Government (-G) (NETTING),
27 Describes one of those on the door (HINGED door) with hearing aid missing aria (‘hearing aid’ missing ‘aria’ = hengid = HINGED),
28 Difficulty (PLIGHT) in parking (P-) at the airport (flight) heading off (f) (‘flight’ = -LIGHT) (PLIGHT),
32 Dry sherry (FINO) consumed by staff in off-licence (consumed by ‘staff in off-licence’ = FINO),
33 Covered up by hijab – a lifetime (covered up by ‘hijab – a lifetime’ = BALI) in Indonesia (BALI).