The Sunday Crossword No 3114, Sunday 30 Aug 2020

ACROSS
1   Bowler's second stopping run ... leads economically to 3 down (3-5) HAT-TRICK {HAT}{T{R}ICK}
5   Reconstituted spare parts for Everyman in the old country (6) PERSIA {PERS{I}A*}
10 Our cousin's a warrior, we hear (7) GORILLA (~guerrilla)

11 You can see right through this earl with the old predicament (7) EYEHOLE {E}{YE}{HOLE}
12 Fool almost getting married, in a manner of speaking (5) IDIOM {IDIOt}{M}
13 In desperation, hold out scrap (4-5) LAST-DITCH {LAST}{DITCH}
14 Advice lacking energy, odd: 'Stand one's ground' (3,3,5) DOS AND DONTS {ODD+STAND+ONeS}*
18 Southern guy is nasal, revolting, disgusting (2,4,2,3) AS UGLY AS SIN {S+GUY+IS+NASAL}*
21 Errant – so bad – pole dance (4,5) PASO DOBLE*

23 One in 5 now wanting some veterinarian to return (5) IRANI [T<=]
24 Setting down two things musician might do for audience (7) PLACING (~play sing)
25 Best part of visual increased tenfold (7) OPTIMAL OPTI(-c+m)MAL
26 Esme Llywellyn's a little malodorous (6) SMELLY [T]
27 Sup tasty prepared remains (5,3) STAYS PUT*

DOWN
1   Witches, soldier included in something distinctly Scottish (6) HAGGIS {HAG{GI}S}

2   It's a complex container for rising Doctor! (6) TARDIS {ITS+A}* over {DR<=} &lit

3   Not initially well groomed – could become one to emulate (4,5) ROLE MODEL {wELL+gROOMED}*
4   Mathematician blathers madly, wasting time in Savoy (7,7) CHARLES BABBAGE {BLAtHERS}* in {CABBAGE}
6   Polish team regularly getting goal (5) EMEND {tEaM}{END}
7   Primarily, something hollered out with the utmost noisy energy? (4,4) SHOW TUNE Acrostic &lit
8   Incorrectly, 'the May stone'; it's the February birthstone (8) AMETHYST {THE+MAY}*{ST}

9   Riotous pastoral events? (8,6) PEASANTS REVOLT* &lit
15 Finding crater on island, attempt practice with canines (9) DENTISTRY {DENT}{IS}{TRY}
16 Cold shaken off, biceps flexed, a doctor's inserted instrument (8) BAGPIPES {BIcEPS}* over {A}{GP}

17 Partridge perhaps pulls funny face earlier in absurd endeavour (4,4) MUGS GAME {GAME}<=>{SMUG<=} (Correction - {GAME}<=>{MUGS} - See comments)
19 Pervert hides letter from Greece; it involves muscle-stretching (4-2) WARM-UP {WAR{MU}P}
20 Knight abandons aggressive tone (6) VIOLET VIOLEnT
22 Man fleeing bright-bottomed baboon? That's boring (5) DRILL manDRILL

Reference List
Bowler = HAT, Run = R, Earl = E, The old = YE, Married = M, Energy = E, Southern = S, 100 = C, 1000 = M, Soldier = GI, Stone = ST, Island = IS, Cold = C, Doctor = GP, Knight = N