The Sunday Crossword No 3121, Sunday 18 Oct 2020

ACROSS
1   Where ineptly hung art may be found avant-garde (3-3-4) OFF-THE-WALL [DD]
6   Jetty's ripe for renovation (4) PIER*
9   What you might see in bathroom: bum before trousers put on (6,4) SPONGE BAGS {SPONGE}{BAGS}
10 Poet's 40% of Providence (4) OVID prOVIDence
12 Endlessly taking our Aga's dough out? Capital! (11) OUAGADOUGOU {OUr+AGAs+DOUGh+OUt}
15 Tells senior churchmen to cede power (7) RELATES pRELATES
16 Earthly stench, ugly air's regularly expelled (7) SECULAR {StEnCh+UgLy+AiR}
17 Bach met liberal King (7) MACBETH*
19 Train station with aspiration to become space station (7) HOUSTON (~EUSTON)
20 Following release of PR, pliable Cypriot taking journey to Paris (4,2,5) CITY OF LIGHT {CYprIOT}*{FLIGHT}
23 Cricket captain, heartless automaton (4) ROOT RObOT

24 How Christopher Robin might describe himself? Hang on ... (4,4,2) BEAR WITH ME [DD]
25 Lucid? Regularly wiped out. Slàinte! (4) SANE SlAiNtE
26 Where some penguins are // unlikely to marry (2,3,5) ON THE SHELF [DD]

DOWN
1   Get rid of creative Frenchman! Get rid of Pierre Renoir for starters! (4) OUST prOUST
2   Some of logpile is deal (4) FLOG [T]
3   Luxuriously happy state, Ontario, on the face of it; however, everyone's hammered on grass (4,2,3,3) HIGH ON THE HOG {HIGH}{ONT}{Ho...r}{Ev...e}{Ha...d}{On}{Gr..s}
4   Setting up wireless Mac? Beware concealed peripherals (7) WEBCAMS [T<=]
5   Record improvisations with bottlenecks (3,4) LOG JAMS {JOG}{JAMS}
7   Oversee Everyman cooking veal with gin and it (10) INVIGILATE {I}{VEAL+GIN+IT}*
8   Part of summer pudding studied, they say, declared 'in season' (10) REDCURRANT (~ read current)

11 Benelux unhappy with 'cretinous' representation (3,9) LOW COUNTRIES {LOW}{CRETINOUS}*
13 President, comical figure finally sans advantages (5,5) TRUMP CARDS {TRUMP}{CARD}{sanS}
14 Bush's grimly humorous letter from long ago (10) BLACKTHORN {BLACK}{THORN}

18 Warhol being, to some extent, portraitist (7) HOLBEIN [T]
19 Artist displayed headless earth-hog (7) HOGARTH {eARTH+HOG}*
21 Primarily, word hollered exhibiting exuberance? (4) WHEE Acrostic &lit
22 Novelist's ego (4) SELF [DD]

Reference List
Power = P