Across:
8 It’s not just (UNFAIR) below the belt (UNFAIR),
9 Tiny piece (PARTICLE) in Post (P-) written by journalist (-ARTICLE) (PARTICLE),
10 Kiss and tell by the banks (‘KIss and teLL’ by the banks = KILL) in Kildare (KILL),
11 Freudian’s (Freudians/analysts = THERAPISTS) article (THE-) on Knock (-RAP-) and unprecedented events (firsts = 1STS = -ISTS) (THERAPISTS),
12 Stepmother lets off shot (‘stepmother’ lets off/without ‘shot’ = tepmer = TEMPER) in fit of rage (TEMPER),
14 State (= homophone indicator) spies (‘sees’ = ‘seas’ = SEAS-) from underworld (-HELL) (SEASHELL) picked up on ocean liner (SEASHELL on sand/ocean liner),
15 One of those in 2 down (PARLIAMENTARIAN in ‘Dáil’) produced diet (diet/assembly = PARLIAMENT-) for Robin’s maid (Maid Marian) starting off (‘Marian’ without ‘m’ = -ARIAN) (PARLIAMENTARIAN),
18 Pride, etc., (pride etc) generated (= anagram indicator) (pride etc = DECREPIT) over The Hill? (over the hill/ worn out = DECREPIT),
20 Retiring (= reversal indicator) old foreign political leader (Evita = -ATIVE) finds nationalist (N-) (NATIVE) in local (NATIVE),
22 Contemptuous (DISMISSIVE) of tips demonstrated in standard (tips ‘Demonstrated In Standard’ = DIS-) letter (-MISSIVE) (DISMISSIVE),
24 Dislikes chucking out disk (‘dislikes’ chucking out ‘disk’ = lies = LIES) of made-up stories (LIES),
25 Gloss over (DISGUISE) guides (guides) travelling (= anagram indicator) (guides = D-GUISE) around one (-I-) school (school = -S-) (DISGUISE),
26 Doctor (COOK-) and writer (-ED) (COOKED) occupied themselves on the range (COOKED).
Down:
1 No (no) going back (= reversal indicator) (no = ON-) to bar (-LINE) (ONLINE) where the surfers hang out (ONLINE),
2 Serving up (= reversal indicator) some aioli additives (some ‘aioLI ADditives’ = liad = DÁIL) similar to what you get with a diet (diet/congress is similar to DÁIL),
3 Canons (canons/principles = CRITERIA) caught (C-) ceremony (-RITE-) at academy (Royal Irish Academy = -RIA) (CRITERIA),
4 Pal leaves appeals (‘pal’ leaves ‘appeals’ = peas = APSE) in the section of the church (APSE),
5 Mistakes (ERRATA) rare (rare) sporty (= anagram indicator) (rare = ERRA-) car (model -T-) with aerodynamic front (with ‘Aerodynamic’ front = -A) (ERRATA),
6 Detective’s (DIs = DIS-) in (-IN-) with that woman (-HER-) from IT (-IT) (DISINHERIT) – give her nothing (DISINHERIT),
7 Crafty group (FLOTILLA) of overseas footballers (F-A) admit whole bunch (-LOT-) is not in good shape (-ILL-) (FLOTILLA),
13 Is going to knock (PILGRIMAGE is going to Knock shrine) crusader (PILGRIM-) lawyer (Attorney General = -AG-) from Spain (-E) (PILGRIMAGE),
14 Small (S-) capital (capital/money = -CENT) (SCENT) comes up smelling like roses (SCENT),
16 Sherry (APERITIF) turns up (= reversal indicator) in good shape (fit = -TIF) from Ireland (IRE = -ERI-) for public address (public address = PA = AP-) (APERITIF),
17 Keep an eye on (TEND-) English (-E-) college (-C-) in American city (New York = -N-Y) (TENDENCY) for course that’s typically taken (TENDENCY),
19 Blooming part (PISTIL part of blooming flower) of gun (pistol), by the sound of it (= homophone indicator) (‘pistol’ = ‘PISTIL’),
21 Looked out (VIEWED) for philosophy (VIEW-) writer (-ED) (VIEWED),
23 Couple (ITEM) heads into the evening mist (heads ‘Into The Evening Mist’ = ITEM),
24 Kitty (pool) retires (= reversal indicator) (pool = LOOP) from Helix (LOOP).