Across:
8 Retiring (= reversal indicator) Swiss hero (William Tell = -LLET) with record (EP = PE-) (PELLET) is shot (PELLET),
9 One gets through (SURVIVOR) to one of those with life in them despite The Troubles (SURVIVOR),
10 Consume what’s produced (DINE) in jihadi network (what’s in ‘jihadi network’ = DINE),
11 Father (PAR-ENT) admits taking post (mail) up (= reversal indicator) (mail = -LIAM-) (PARLIAMENT) in the house (PARLIAMENT),
12 You and me (-US-) in the money (CO-IN) (COUSIN) from extended family (COUSIN),
14 Made it a condition (DEMANDED) Germany (Germany domain = .de = DE-) named (named = -MANDE-) mysterious (= anagram indicator) director (-D) (DEMANDED),
15 Katy did (katydid = INSECT) horrible thing (REPELLENT) (INSECT REPELLENT) – it causes them to drop like flies perhaps (INSECT REPELLENT),
18 A (A-) model (TYPICAL) (ATYPICAL) is not the usual type (ATYPICAL),
20 Warrant (ENSURE) for criminal (= anagram indicator) nurse (nurse = ENSUR-) from Spain (-E) (ENSURE),
22 They may be significant (significant -OTHERS) to director (-D) in month (M- -AY) (MOTHER’S DAY) synonymous with family celebration (MOTHER’S DAY),
24 No place for petulance (no ‘place’ for/in ‘petulance’ = etun = TUNE) in The Sound of Music (TUNE),
25 Suspicious tendencies (PARANOIA) of soldier (PARA-) on a small charge (ion = -NOI-) arising (= reversal indicator) from being absent (-A) (PARANOIA),
26 Use an (use an = NAUSE-) anomaly (= anagram indicator) to go to a (-A) (NAUSEA) doctor to diagnose this (NAUSEA).
Down:
1 Sheepish type (MERINO) of medic (medical officer = M-O) touring Ireland (-ERIN-) (MERINO),
2 Women left unwelcome (‘women’ left ‘unwelcome’ = uelc = CLUE) hint (CLUE),
3 Hurry up (STEP ON IT) and put your foot down (STEP ON IT),
4 Part of warehouse receipt (part of ‘warehouse receipt’ = USER) for consumer (USER),
5 It’s self-evident (TRUISM) this describes 24 down perhaps (TRUISM describes ‘true’ perhaps),
6 Strips down (DISMANTLES) lens amidst (lens amidst = DISMANTLES) broadcast (= anagram indicator),
7 Park (P-) with snow leopard (-OUNCE) to broadcast (ON) (POUNCE ON) from spring (spring/leap = POUNCE ON),
13 One of The Dwarfs (SLEEPY-) is in charge (-HEAD) (SLEEPYHEAD) of one of those types miles away (SLEEPYHEAD),
14 Live (DWELL) with director (D-) harmoniously (-WELL) (DWELL),
16 Theoretical (NOTIONAL) Latino on (Latino on = NOTIONAL) tour (= anagram indicator),
17 Looking back (= reversal indicator), envoy (envoy) lacks heart (v) (‘envoy’ = without ‘v’ = enoy = -YONE) meeting father (Rev = -VER-) figure finally (‘figure’ finally = E-) (EVERYONE) in public (EVERYONE),
19 Short (k) city (‘Cork’ without ‘k’ = COR-) gangster (-DON) (CORDON) is put out by police sealing off crime scene presumably (CORDON),
21 Carpenter removes cap (‘carpenter’ removes ‘cap’ = renter = RENTER) addressing person in temporary accommodation perhaps (RENTER),
23 Some characters override a decision (some characters ‘override a decision’ = DEAD) that’s out of this world (DEAD),
24 Padre’s not in Departures (‘padres’ not in ‘departures’ = ertu = TRUE) – is that to be believed? (TRUE).