Across:
1 How much more curvy is that (WAVIER) one in Mediterranean (WAV-E-) taking in island (-I-) with Romeo (-R) (WAVIER),
4 Influenced (AFFECTED) what the player did (A-CTED) around very loud (forte fortissimo = -FF-) final game (final ‘game’ = -E-) (AFFECTED),
9 What The Police created (LINE-UP) on The Bill (on the bill/billboard = LINE-UP),
10 Model (model/version = TYPE-) having fling (fling/throw = -CAST) (TYPECAST) is always acting the maggot perhaps (TYPECAST),
12 Earl (COUNT-) gets depressed (-DOWN) (COUNTDOWN) coming up to New Year’s Day (COUNTDOWN coming up to New Year’s Eve),
13 Drops (drops = PRODS) butcher (= anagram indicator) in digs (PRODS),
14 Chat (chat = song BIRD-) with guard (-WATCH-) to what’s trending (-IN-) on golf (-G) (BIRDWATCHING) by keeping an eye on the eagles and albatrosses (BIRDWATCHING),
18 Emotionally stirring (HEART-WARMING) spirit (HEART-) with hot (-WARM-) gin (gin = -ING) cocktail (= anagram indicator) (HEART-WARMING),
21 If there’s no milk in milk float (no ‘milk’ in ‘milk float’ = float = ALOFT) – how is that one of the overheads? (a loft = ALOFT),
22 Presumably, they went to see The Andromeda Strain in picture house (FILMGOERS went to see The Andromeda Strain) to foil germs (foil germs = FILMGOERS) spreading (= anagram indicator),
24 Dawn’s (SUNRISES) awful (= anagram indicator) sins – sure? (sins sure = SUNRISES),
25 Well-disposed (GENIAL) to taking a lot from allegation (taking ‘a lot’ from ‘allegation’ = GENIAL),
26 Outlaw (RENEGADE) enraged (enraged = REN-GADE) criminal (= anagram indicator) from Spain (-E) (RENEGADE),
27 Cured (SMOKED) by medics at foundation (‘medics’ at foundation = S-) – the trendy type (mod = -MO-D) covering Kildare (-KE-) (SMOKED).
Down:
1 New members of the pack (WOLF CUBS) are prepared to do the scouting? (cub scouts = WOLF CUBS),
2 Morrison (VAN-) backing (= reversal indicator) The Cure (drug = GU-RD) entertains area (-A-) (VANGUARD) in front row (VANGUARD),
3 Travel (= anagram indicator) Peru (Peru = ERUP-) by car (model -T) (ERUPT) – is that to be really active? (ERUPT),
5 Unobserved observer (FLY ON THE WALL) targeted by member of Swat Team perhaps? (FLY ON THE WALL),
6 In the middle of storm, centre (EYE- of the storm) gets the first score (-OPENER) (EYE- OPENER) – it’s astonishing to one of the viewers (EYE-OPENER),
7 Part of the home brewing paraphernalia (TEAPOT) produced drink (TEA-) and drugs (-POT) (TEAPOT),
8 Feel animosity (DETEST) to writer (ed = DE-) reviewing (= reversal indicator) trial (-TEST) (DETEST),
11 Wizard’s (Harry POTTER’S) sphere of influence (FIELD) (POTTER’S FIELD) in the dead centre of the poor man’s last home (POTTER’S FIELD),
15 Girls went (girls went = WRESTLING) out (= anagram indicator) with sporty type from Ring (WRESTLING),
16 Fruit (LIME-) stack (-RICK) (LIMERICK) in Munster (LIMERICK),
17 Reports (= homophone indicator) row (“row” = “roe” = EGG S-) with a (-A-) young man (-LAD) (EGG SALAD) getting served in deli (EGG SALAD),
19 Scare a (scare a = CAESAR) crazy (= anagram indicator) emperor (CAESAR),
20 Take part (JOIN IN) of border (border/seam = JOIN) up (= reversal indicator) north (NI = IN) (JOIN IN),
23 Shine a light (GLEAM) on novice (learner = -L-) in awful (= anagram indicator) game (game = G-EAM) (GLEAM).