Across:
1 Port (P-) – the fiery illegal type (-ARSON) (PARSON) produced by the minister (PARSON),
4 Most of (d) the drugs (‘speed’ without ‘d’ = SPEE-) found at revolutionary’s (Che’s = -CHES) (SPEECHES) addresses (SPEECHES),
9 Study (READ-) from medical institution (-ER in hospital) (READER) is a page-turner? (READER),
10 Cordite (cordite) explosive (= anagram indicator) (cordite = DIRECTO-) that’s never ending (‘neveR’ ending = -R) (DIRECTOR) – is there one in charge? (DIRECTOR),
12 Season (PEPPER-) on (-ON-) island (-I) (PEPPERONI) goes down well with the Italians (PEPPERONI),
13 Charges along the journey (TOLLS) heading off (a) for The Maldives, for instance (atolls) (‘atolls’ without ‘a’ = TOLLS),
14 Use a crystal ball (READ THE STARS) to scrutinise (READ) most of them (most of ‘them’ = THE) with heavenly bodies? (STARS) (READ THE STARS),
18 Shoplifter (CRIMINAL) takes a number of beer bottles (CASE of beer) (CRIMINAL CASE) handled by the barman (CRIMINAL CASE),
21 Fruit (MANGO) from citron removed from morning coat (‘citron’ removed from ‘morning coat’ = mngoa = MANGO),
22 Gloats in a (gloats in a) way (= anagram indicator) (gloats in a = NOSTALGIA) out of sentimentality (NOSTALGIA),
24 Doesn’t hold a grudge (LETS IT GO) in accommodations (LETS) one (I-) got (got) free (= anagram indicator) (got = -T GO) (LETS IT GO),
25 Pay attention to (LISTEN) Leninist dropping in (‘Leninist’ dropping ‘in’ = lenist = LISTEN),
26 Forces (MILITARY) Mary (M-ARY) to take in one (-I-) type of chick (chick -LIT-) (MILITARY),
27 Flying (= anagram indicator) drones (drones = SNORED) heard at night? (SNORED).
Down:
1 Gym (PE-) registered (-R) on O’Connell Street (-SPIRE) (PERSPIRE) to lose water? (PERSPIRE),
2 Collect crops (REAP-) and fruit! (-PEAR) (REAPPEAR) Come again? (REAPPEAR),
3 Really big (OBESE) Fords taken off bed of roses (‘fords’ taken off ‘bed of roses’ = beose = OBESE),
5 Greek character (PHI-) on record (-LIST-) popular (-IN-) with heads of industry – silly men (with heads of ‘Industry Silly Men’ = -ISM) (PHILISTINISM) with a lack of culture (PHILISTINISM),
6 A type of college (ELECTORAL college) to relocate (relocate) mysteriously (= anagram indicator) (relocate = ELECTORA-) to Lima (-L) (ELECTORAL),
7 11 down starts (‘hotel manager’ starts = HOTEL-) with endless (end ‘lesS’ = -S) (HOTELS) overseas pensions (overseas pensions/hotels in France = HOTELS),
8 Can’t make this point strongly enough (STRESS) – this is not without its difficulties (STRESS),
11 Read aloud (= homophone indicator) in (‘in’ = ‘inn’ = HOTEL) coach (MANAGER) (HOTEL MANAGER) to one with reservations for the trip (HOTEL MANAGER),
15 Blunder (-ERROR-) is (-IS-) covered up during race (TT race/ Tourist Trophy = T-T) (TERRORIST) by revolutionary type causing mayhem (TERRORIST),
16 One of the issues (DAUGHTER) produced by (= anagram indicator) The Guard (The Guard = DAUGHTER),
17 Lived on (REMAINED) riverside grass (reed = RE-ED) around source of water (-MAIN-) (REMAINED),
19 Coat of arms (EMBLEM) of lawyer (-BL-) consumed by upsetting (= reversal indicator) viral phenomenon (meme = EM-EM) (EMBLEM),
20 Gradually produce (INSTIL) slit in (slit in) dress! (= anagram indicator) (slit in = INSTIL),
23 Draw a line dismissing Ward (‘draw a line’ dismissing ‘Ward’ = aline = ALIEN) as strange (ALIEN).