No 12096, Saturday 26 Aug 2017, Buzzer

ACROSS

1   Casual wear, straight out a good fit (1-5) T-SHIRT {STRaIgHT}*
5   Support group left off a young one (4,3) BEAR CUB {BEAR}{ClUB}

9   T-square use for instance (7,7)  SURFACE TENSION {USE+FOR+INSTANCE}* T is on surface of Tension? See comments
11 Freshwater mammals rest when temperature gets hot (6) OTTERS {OT(-h+T)ERS}

12 Ridicule penned ably by Goldsmith for one (8) JEWELLER {JE{WELL}ER}
13 Dramatic works of Shakespeare popular all-round (5) OPERA (T<=)
14 Recipe of publisher to make savoury snacks (9) BHELPURIS {PUBLISHER*}

16 Brexit perhaps is all about ultimately unwanted quarrel with European Union to leave victor (5,4) VOGUE WORD {{unwanteD}{ROW} {EU}{GO}{V}}<=
18 KO’s resulting in grunts? (5) OINKS {KOS}={O} in {KS} = {OINKS}
20 I had gone through Sholay front to back in leisure time (8) HOLIDAYS {(-s)HOL{I'D}AY(+S)}
22 One feeling sentimental for very fine couple (6) SOFTIE {SO}{F}{TIE}
24 Crafty writer to term one plot — nothing hard (11,3) CALLIGRAPHY PEN {CALL}{I}{GRAPH}{hY PhEN}

25 To gripe uncontrollably, that inflates self-importance for some (3-4) EGO TRIP {TO+GRIPE}*
26 Encouragement for Spanish learner taking very English GCSE exam (1-5) O-LEVEL {O-LE}{V}{E}{L}

DOWN

2   Close by regular topline public transport (7) SHUTTLE {SHUT}{TopLinE}
3   Blowing top off, quantifier for anger? (9) INFURIATE {qUANTIFIER}*
4   Staple course (4) TACK (DD)
5   Part with drug, stopping craze and finishing, however unpleasant it is (6,3) BITTER END {BIT}{T{E}R END}
6   Name for woman or women taking care of children endlessly (5) ANNIE {nANNIEs}
7   Chapter getting more feverish in exciting story (7) CHILLER {CH}{ILLER}
8   10 is 2 here? (6,6) BINARY SYSTEM (CD)
10 From limo to RV, eh I clean any conveyance (5,7) MOTOR VEHICLE (T) See comments
14 Express disapproval by rejecting role of mine (5,4) BOOBY TRAP {BOO}{BY} {PART<=}
15 Pope to try dancing for example (9) PROTOTYPE {POPE+TO+TRY}*
17 Gravity a little lower, not oddly, going up for an astronomer (7) GALILEO {G}{A}{L'IL}{lOwEr<=}
19 Letter about girl being absent (3,4)  NOT HERE {NOT {HER}E}
21 Appliance in a club to turn down volume (5) DRIER {DRIvER}
23 Till//able? (2,2) UP TO (DD)

Reference list  

Good=G, Left=L, Temperature=T, Hot=H, European Union=EU, Victor=V, I had=I'd, Fine=F, One=I, Hard=H, Encouragement for Spanish=Ole, Learner=L, Very=V, English=E
Drug=E, Chapter=Ch, Gravity=G, Little=Li'l, Girl=Her, Volume=V

Color/Font Scheme

Definition, Solution, Component letters, Embedded links, Anagram Indicator, C/C indicator, Reversal Indicator, Hidden word Indicator, Letter Pick indicator, Deletion Indicator, Homophone Indicator, Movement Indicator, Positional Indicator, Substitution, Indicator, Link/Connector, Extraneous

GRID