Across:
8 Barman (B-L-) consumes mature (-OLD-) Burgundy finishing it (‘Burgundy’ finishing it = -Y) (BOLDLY) shamelessly (BOLDLY),
9 Newspaper column (DEATH column) on dispute (ROW) (DEATH ROW) tends to keep people captive indefinitely in condemned housing (DEATH ROW),
10 Holds the title (OWNS) in Trim (t) town (‘town’ without ‘t’ = OWN-) before (= position indicator) last fights (last ‘fights’ = -S) (OWNS),
11 A clue for detective (a LEAD) from those people (they = THE -Y) around Washington (WA-) (LEAD THE WAY) guide (LEAD THE WAY),
12 Dean leaves broad beans (“Dean” leaves “broad beans” = broabs = ABSORB) to soak (ABSORB),
14 Small matter (MOLECULE) of spy (spy = MOLE-) changing (= anagram indicator) clue (clue = -CULE) (MOLECULE),
15 Type of hypocrisy applied to some people and not to others (DOUBLE STANDARDS) in Spitting Image? (DOUBLE) They need to be run up the flagpole! (STANDARDS/flags run up the flagpole) (DOUBLE STANDARDS),
18 Charge (TAX) for records (DISCS) (TAX DISCS) legally required by those in estates, for instance (TAX DISCS required for those in estates/cars),
20 Mouthy type (G-UM) admits turning (= reversal indicator) secret agent (spy = -YPS-) (GYPSUM) involved in the construction of The Wall (GYPSUM),
22 Office (BUREAU-) takes brief (e) case (‘crate’ without ‘e’ = -CRAT) (BUREAUCRAT) for public official (BUREAUCRAT),
24 Set down (LAID down) area (-A-) in covering (L-ID) (LAID),
25 It’s spreading in a flowery way from The Wall (CLEMATIS) to motorway (-M-) in Castile (Castile = CLE-ATIS) potentially (= anagram indicator) (CLEMATIS),
26 Stylish director (AUTEUR) loses head (h) with overbearing arrogance (‘hauteur’ without ‘h’ = AUTEUR).
Down:
1 Officer (CO-) takes fair amount of the (half of) week (half of ‘week’ = -WE-) in hostelry (B&B = -B-B) (COBWEB) that’s gathering dust (COBWEB),
2 Count’s (counts = ADDS) men leave demands (‘men’ leave ‘demands’ = dads = ADDS),
3 Sly (Sly = SYL-) plan (= anagram indicator) to get fit (-ABLE) after losing lead? (‘losing’ lead = -L-) (SYLLABLE) In a word, that’s part of what’s been said! (SYLLABLE),
4 Trim (l) model (‘ideal’ without ‘l’ = IDEA) with a ballpark figure? (IDEA),
5 Mental (mental = MANTEL) breakdown (= anagram indicator) over the fire (MANTEL),
6 Ring for motoring (WHEEL) press (CLAMP) (WHEEL CLAMP) to stop drivers in their tracks (WHEEL CLAMP),
7 Worked out classy type of 14 down (worked out ‘maths’ = TOTALLED) was what the accountant did (TOTALLED),
13 In dispute (ON BAD TERMS) over (= reversal indicator) refusal (no = ON) to go with immoral (BAD) conditions (TERMS) (ON BAD TERMS),
14 One of the subjects (MATHS) reviews (= reversal indicator) The Imposter (sham = MA-HS) outside the capital (‘the’ capital -T-) (MATHS),
16 Clearly this isn’t (OPAQUELY) old (O-) plaque (plaque = -PAQUEL-) designed (= anagram indicator) for Fourth of July (fourth of ‘July’ = -Y) (OPAQUELY),
17 Odd (= anagram indicator) thing (thing = NIGHT-) for accountant (-CA-) to post (-P) (NIGHTCAP) with late tot (NIGHTCAP),
19 Close (shut) most of (t) (‘shut’ without ‘t’ = SHU-) the paper (Financial Times = -FT-) with one (-I) (SHUFTI) quick look (SHUFTI),
21 Small place of further education (university = UNI-) is half Basque (half ‘Basque’ = -QUE) (UNIQUE) and quite distinctive (UNIQUE),
23 Communicate (retweet = R-T) about universal (-U-) suffrage from the start (‘suffrage’ from the start = -S-) (RUST) with corrosive material (RUST),
24 Lists of the songs by Capital’s (‘lists of the songs’ by capitals = LOTS) groups (LOTS).