Across:
8 Piece of countryside greenbelt (piece of ‘countrysiDE GREEnbelt’ = degree = DEGREE) comes with a qualification (DEGREE),
9 Loses the head (c) with stylish (cool) (‘cool’ without ‘c’ = - OOL -) Frenchman (-M-) mentioned in document covering estate (will = W- -ILL) (WOOL MILL) producing fleeces (WOOL MILL),
10 Not upset (GLAD), by and large, dropping Barney (‘by and large’ dropping ‘Barney’ = dlag = GLAD),
11 What the fishmonger might say he hasn’t got (out of plaice) reportedly (= homophone indicator) (‘out of plaice’ = ‘OUT OF PLACE’) is not appropriate on some occasions (OUT OF PLACE),
12 Problem (ENGIMA) of wild (= anagram indicator) game (game = E-GMA) found around Ulster (-NI-) (ENIGMA),
14 Small (S-) horse (pony) – Boomerang’s (= reversal indicator) (pony = -YNOP-) relative (-SIS), (SYNOPSIS) in summary (SYNOPSIS),
15 For those showing loving commitment and no longer interested in singles (ENGAGEMENT RINGS) produced by The Clash (clash/battle = ENGAGEMENT) and a number of bands (RINGS) (ENGAGEMENT RINGS),
18 Checks out The Hearing (OTOSCOPE) with old (O-) Count (count = tot) briefly (t) (‘tot’ without ‘t’ = -TO-) where there’s capacity (-SCOPE) (OTOSCOPE),
20 Partner (MAT-E) admits old city (-UR-) (MATURE) is developed as much as it can be (MATURE),
22 You can get this if you really try (OBTAINABLE) to secure (OBTAIN-) a (-A-) barrister (-BL-) from England (-E) (OBTAINABLE),
24 Duck (BEND) found on banks of beautiful rivers of Ireland (found on banks of ‘BEautiful rivers of irelaND’ = BEND),
25 Brief notes (MEM-OS) about ten (ten = -ENT-) lost (= anagram indicator) (MEMENTOS) souvenirs (MEMENTOS),
26 Races (TRIBES) in lane coming out of East Berlin (‘lane’ coming out of ‘East Berlin’ = estbri = TRIBES).
Down:
1 Second class (B-) liner (liner = -ERLIN) built (= anagram indicator) (BERLIN) in European city (BERLIN),
2 Raised (BRED) local money (bread) on the radio (= homophone indicator) (‘bread’ = ‘BRED’),
3 Veteran (veteran = REN-VATE) model (= anagram indicator) takes in Oxford (-O-) (RENOVATE) to get a facelift (RENOVATE),
4 Draws (tows) revolutionary (= reversal indicator) (tows = SWOT) in study (SWOT),
5 Scientist (BOFFIN) is away (-OFF-) in rubbishy spot (B-IN) (BOFFIN),
6 Take a quick run (sprint = S- PRINT) around shopping centre (-MALL) (SMALL PRINT) for the conditions of sale (SMALL PRINT),
7 Making progress with group (FLOCKING) producing loud music (forte = F-) and securing residency (-LOCKING) (FLOCKING),
13 One of those providing accommodation for Aladdin’s pal (for Aladdin’s pal = Genie in the bottle = GLASSMAKER) contributes to The Mirror (GLASSMAKER),
14 Swayed (swayed) hearing (= homophone indicator) (‘swayed’ = ‘SUEDE’) with the material (SUEDE),
16 Celebrities (NOTABLES) heard this in the bar with standing room only perhaps (no tables = NOTABLES),
17 Extremely windy types (TEMPESTS) of Oriental (East = -E-) foreign politicians (-MP-) consumed by trials (T-ESTS) (TEMPESTS),
19 Fancy (ORNATE) scam from Sacramento? (‘scam’ from ‘Sacramento’ = raento = ORNATE),
21 Zoomed (RAN-), for example (e.g. = -GE-), Review (= reverse indicator) for school (-S) (RANGES) classes (RANGES),
23 Amongst microbes tested (amongst ‘microBES Tested’ = BEST) in the cream (the BEST),
24 Spot (pimple = BOIL) barrister (B-L) ringing to attract local attention (Oi! = -OI-) (BOIL).