Across:
1 Priest (priest) working (= anagram indicator) (priest = SPRITE) with amazing type who is a bit of a legend (SPRITE),
4 Very strong (CAST IRON) players (CAST) at the club (IRON golf club) (CAST IRON),
9 Board member (chess board member = BISHOP) from Balearic Islands opens (‘Balearic Islands’ opens = BI-) retail opportunity (-SHOP) (BISHOP),
10 Mixed (ASSORTED) with a (A-) society (-S-) model (-SORT-) and writer (-ED) (ASSORTED),
12 Fishy business (TROUT FARM) in 3 down (‘trout’ = TROUT) is a growing enterprise (FARM) (TROUT FARM),
13 Swearing coming out of watering holes (‘swearing’ out of ‘watering holes’ = thole= HOTEL) and inn (HOTEL),
14 A bench perhaps (RESTING PLACE) in the graveyard (RESTING PLACE),
18 A classy type (SCHOOLFELLOW) of Don (-FELLOW) is behind (= position indicator) one of those containing 3 down (‘trout’) for instance (SCHOOL- containing ‘trout’) (SCHOOLFELLOW),
21 A wake-up call (ALARM) for team dumped by Alma Mater (‘team’ dumped by ‘Alma Mater’ = almar = ALARM),
22 Making an offer (TENDERING) to TD in Green (TD in Green) struggle (= anagram indicator) (TD in green = TENDERING),
24 Residence (HOUSE-) on summit (-TOP) (HOUSETOP) with parking space for dancer’s boss (Santa) once a year (HOUSETOP),
25 Fiercely criticize (SAVAGE) barman (Attorney General = -AG-) in store (store = SAV-E) (SAVAGE),
26 Old suite (old suite) designed (= anagram indicator) (old suite = SOLITUDE) for retirement (SOLITUDE),
27 Trespassers dropping pears (‘trespassers’ dropping ‘pears’ = trssse = STRESS) with anxiety (STRESS).
Down:
1 Conservative (-TORY) has a good cry (SOB S-) starting (= position indicator) (SOB STORY) pathetic tale (SOB STORY),
2 Peer’s son (peers son) showing off (= anagram indicator) (peers son = RESPONSE) to Sally (sally/retort = RESPONSE),
3 Lake swimmer (TROUT) in clip of (y) Endeavour (‘try’ without ‘y’ = TR-) is revealed (-OUT) (TROUT),
5 Gathering of people (ASSEMBLY) at the bar (LINE) (ASSEMBLY LINE) taking up space in The Factory (ASSEMBLY LINE),
6 In addition (TOO-) to that (that) lost ultimate (t) (‘that’ without ‘t’ = -THA-) revolutionary (-CHE) (TOOTHACHE) – a real pain in the face perhaps (TOOTHACHE),
7 Judge (judge/rate = R-ATE) consumes good books (Old Testament = -OT-) (ROTATE) from exchange (ROTATE),
8 Criminal (Don) sets up (= reverse indicator) (Don = NOD-) university (University of Limerick = -UL-) college foundation (‘collegE’ foundation = -E) (NODULE) with small lump (NODULE),
11 Appreciate a joke publicly (LAUGH OUT LOUD) from ruffian (lout = L- OUT) about a month in the summer (Aug = -AUG-) at hotel (-H) that’s garish (LOUD) (LAUGH OUT LOUD),
15 It’s imperative (INCUMBENT) to one of those in The Office (INCUMBENT),
16 Fundamental (ULTIMATE) sect (cult) loses leader (c) (‘cult’ without ‘c’ = ULT-) and one (-I-) partner (-MATE) (ULTIMATE),
17 Swears (swears) wildly (= anagram indicator) (swears = SWA-ERS) about horse (-GG-) (SWAGGERS) and how one struts confidently (SWAGGERS),
19 Making (= anagram indicator) boast (boast = BAT-OS) about hotel (-H-) (BATHOS) feels like an anticlimax (BATHOS),
20 Julius Caesar got rid of juries (‘Julius Caesar’ got rid of ‘juries’ = luscaa = CASUAL) – how flippant is that? (CASUAL),
23 Divorcee (EX-) gets to make a scene? (-ACT) (EXACT) That’s correct! (EXACT).