Across:
8 Some Ambystoma tolerates (some 'ambysTOMA TOlerates' = tomato = TOMATO) fruit (TOMATO),
9 Search is (search is) unsettling (= anagram indicator) (search is = CASHIERS) those employed by the bank (CASHIERS)
10 Sacks (BAGS) those revolting (= reverse indicator) characters in business gabbing (those revolting characters in ‘businesS GABbing’ = sgab = BAGS),
11 Award at university (FIRST) on very thin paper (tissue) that’s needs no introduction (t) (‘tissue’ without ‘t’ = ISSUE) (FIRST ISSUE) to the publishing world – it’s a collector’s item (FIRST ISSUE),
12 Romeo (lover) returns (= reversal indicator) (lover = REVOL-) car (model T = -T) (REVOLT) in disgust (REVOLT),
14 Two women married (Rose + Mary = ROSEMARY) to Herb? (herb = ROSEMARY),
15 Those managing inventory know this method (FIRST IN FIRST OUT) opens 11 across (opens ‘first issue’ = FIRST) popular (IN) with Irishmen (Irish ‘men’ = FIR-) on the beer (stout = -ST OUT) (FIRST IN FIRST OUT),
18 Provide more exposure (FLESH OUT) for loud music (forte = F-) associated with the French (‘the’ French = -LE-) getting to speak up (shout = -SH OUT) (FLESH OUT),
20 Air hostess dismisses trio (‘air hostess’ dismisses ‘trio’ = ahsess = SASHES) of bands (SASHES),
22 Hard to see (INDISTINCT) getting out of Focus (out of focus = INDISTINCT),
24 Partner (MATE) of one of those at the end of 6 down (one at the end of ‘first mates’ = one of ‘mates’ = MATE),
25 It’s a sign of miserly behaviour (MEANNESS) from girl (-ANNE-) in trouble (ME-SS) (MEANNESS),
26 Graduate (-MA-) consumed by grass laid out (LAW-N) (LAWMAN) by caseworker (LAWMAN).
Down:
1 Public show of respect (HOMAGE) for drawing attention (Ho! = HO-) to wild (= anagram indicator) game (game = -MAGE) (HOMAGE),
2 No limit to tribalism (no ‘limit’ to ‘tribalism’ = rbas = BARS) in some watering holes (BARS),
3 The Paper covering the match (wedding CONFETTI) is thrown by those United supporters? (CONFETTI),
4 Make a lasting impression (SCAR) with clip of (f) boa (scarf) (‘scarf’ without ‘f’ = SCAR),
5 Need to get out of East Indies (‘need’ to get out of ‘East Indies’ = astiis = AS IT IS) the way things stand (AS IT IS),
6 The crafty lads (FIRST MATES) produced by Adam and Eve (FIRST MATES),
7 Four/four (four four) alteration? (= anagram indicator) (four four = FROUFROU) That causes the swish of the skirt! (the swish of a FROUFROU skirt),
13 Preoccupations (OBSESSIONS) of Oscar (O-) Bishop (-B-) at times jamming in the pub (-SESSIONS) (OBSESSIONS),
14 Overhaul (REFIT) of fire- (fire) -damaged (= anagram indicator) (fire = REFI-) square (-T square) (REFIT),
16 Ocean liner (ocean liner = sand) starting off (s) (‘sand’ without ‘s’ = -AND-) in Capri, for example (Isle = ISL-E-), and heading for Rome (heading for ‘Rome’ = -R)? (ISLANDER) The Man of Aran! (ISLANDER),
17 Move to another environment (RESETTLE) to let trees (let trees) develop (= anagram indicator) (let trees = RESETTLE),
19 Vent (OUTLET) from evolutionist with no vision (‘evolutionist’ with no ‘vision’ = eolutt = OUTLET),
21 Corner (ENTRAP) for Oriental (East = E-) good books (New Testament = -NT-) and music (-RAP) (ENTRAP),
23 Recall (= reverse indicator) relative (son = NOS-) close to aunty (close/end to ‘auntY’ = -Y) (NOSY) as overly curious (NOSY),
24 Works on the lawn (MOWS) somehow without hoe (‘somehow’ without ‘hoe’ = somw = MOWS).