Across:
8 Ran away from remaining (‘ran’ away from ‘remaining’ = emiing = GEMINI) twins (GEMINI),
9 Produced a type of film (ANIMATED) clip (l) of Bambi (‘animal’ without ‘l’ = ANIMA-) with the (the) heartless (h) (‘the’ without ‘h’ = -TE-) director (-D) (ANIMATED),
10 Fundraiser (FETE) goes around feeling inadequate (FETE goes around ‘FEeling inadequaTE’),
11 Warm up (DO A STRETCH) and take your time (DO A STRETCH),
12 Detailed (t) order (‘fiat’ without ‘t’ = FIA-) for Glaswegian (Scot) doesn’t end (t) (‘Scot’ without ‘t’ = -SCO) (FIASCO) in disaster (FIASCO),
14 Wrote of a (wrote of a = FOOTWEAR) novel (= anagram indicator) from Wellington (wellington boot = FOOTWEAR),
15 Two types of meat (beef + steak = BEEFSTEAK) in salad (TOMATO) (BEEFSTEAK TOMATO) with fruit? (BEEFSTEAK TOMATO),
18 Stops along the way (STATIONS) for stoats in (stoats in = STATIONS) wild (= anagram indicator),
20 It’s unpleasant removing pets (it’s ‘unpleasant’ removing ‘pets’ = unlaan = ANNUAL) from year book (ANNUAL),
22 Gold-digger (PROSPECTOR) in Coppers to (coppers to = PROSPECTOR) dance (= anagram indicator),
24 Polish (WIPE) on the margins of wind energy in Europe (margins of ‘WInd energy in EuroPE’ = WIPE),
25 Keep tabs on (REGULATE) police (REGULATE),
26 Confounded (AMAZED) by rebellious (= anagram indicator) dame (dame = AM-ED) holding all the letters (A to Z = -AZ-) (AMAZED).
Down:
1 Sporting (= anagram indicator) enemy (enemy = YEMEN-) is one (-I) (YEMENI) living in Arabian peninsula (YEMENI),
2 Anger (BILE) of irresponsible missing prisoners (‘irresponsible’ missing ‘prisoners’ = eibl = BILE),
3 Discovers (FINDS OUT) paper (Financial Times = F- -T) about one (-I-) sound (sound = NDS OU-) wave? (= anagram indicator) (FINDS OUT),
4 Two states (California and Virginia = CA+VA = CAVA) producing sparkling wine (CAVA),
5 Open bar (open ‘bar’ = B-) to begin with (first =1ST = -IST-) for most of (d) staff (‘rod’ without ‘d’ = -RO) (BISTRO) in small restaurant (BISTRO),
6 Like the character in 7 down (like ‘merchant’ = SALESWOMAN), one could be the commercial director (SALESWOMAN),
7 Dealer (MERCHANT) finishes off (c) small car (Mercedes = ‘ merc’ without ‘c’ = MER-) for a song (-CHANT) (MERCHANT),
13 Part of the body (SOFT TISSUE) with Silken (SOFT) Thomas – the first (‘Thomas’ the first = T-) with descendants (-ISSUE) (SOFT TISSUE),
14 Doubts (FEARS) function of (F-) hearing aids (-EARS) (FEARS),
16 Takes in (eats = EAT-S) surroundings, a great lake (Lake -ERIE-) (EATERIES) and number of restaurants (EATERIES),
17 Time off in the plantation perhaps (TEA BREAK) for the rest of the brewers (TEA BREAK),
19 The only possible direction, of course (ONE WAY), to the second John (second ‘John’ = O-) Wayne (Wayne = -NE WAY) adaptation (= anagram indicator) (ONE-WAY),
21 Makes fun of (AP-ES) hiding place (-PL-) (APPLES) for making cider (APPLES),
23 Re-route without our (‘re-route’ without ‘our’ = rete = TREE) Holly (TREE),
24 Watered down (WEAK) in barrels coming from lawbreakers (‘barrels’ coming from ‘lawbreakers’ = weak = WEAK).