The Sunday Crossword No 3127, Sunday 06 Dec 2020

ACROSS
1   Hoopla's mainly@ restricting vital supply (6) PLASMA [T]
4   Something sharp, with soda, knocked back somewhere in W Indies (8) BARBADOS {BARB}{SODA<=}
9   'Vroom', 'mwah', 'nosh' oddly missing in book of Bible (6) ROMANS {vRoOm+MwAh+NoSh}
10 In retrospect, playground superb, having banished quiet crazy demonic dog (8) CERBERUS {REC<=}{SUpERB*}
12 Almost no-one sang about geometric figures (8) NONAGONS {NOONe+SANG}*
13 Briefly hit it off ... before he delivers trite observation (6) CLICHE {CLICk}{HE}
14 Prepared communal rice that won't appeal to all (12) UNCOMMERCIAL*
18 A land manager ordered hefty bill (2,3,3,1,3) AN ARM AND A LEG*
21 Everyman's quiet, regularly kitschy and rascally (6) IMPISH {I'M}{P}{kItScHy}
22 Promo: 'Bracket is tolerable!' (8) ADEQUATE {AD}{EQUATE}
24 Without warning, secretive, underground hollow lair invaded (8) SUDDENLY {S{Un...nD}{DEN}LY}
25 Primarily, very elevated landscapes; dry treeless soil? (6) VELDTS Acrostic &lit
26 Author knocked back rum, also known as 'Molasses Intoxicator' initially (8) MURAKAMI {RUM<=}{AKA}{Mo...s}{In...r}
27 Starters of souvlaki and kofta put before Cypriots regularly in Greek island (6) SKYROS {So...i}{Ko..a}{cYpRiOtS}

DOWN
1   Prune man stewed for a year (3,5) PER ANNUM*
2   Alabama graduate to scrutinize regressive reference works (8) ALMANACS {AL}{MA}{SCAN<=}
3   Staff keeps nametag that's misprinted, showing core competencies etc (10,5) MANAGEMENT SPEAK {MAN}{KEEPS+NAMETAG}*
5   Space that's less humid, we're told (4) AREA (~airier)
6   Dish of leftovers: undercooked mouse stew might do this (6,3,6) BUBBLE AND SQUEAK [C&DD]

7   Frank Capra's job was to do this (6) DIRECT [C&DD]
8   Nurse, one that's got into habits (6) SISTER [DD]
11 Make more attractive posterior: lop off slice at first, then swap sides (6) ENDEAR {rEAR)<=>(END}
15 Reportedly scratched a Monet (6) CLAUDE (~clawed)
16 Plant described by Actinobole and Ericaceae (8) OLEANDER [T]

17 Horrible women love exits being unopened (8) OGRESSES {0}{eGRESSES}
19 'Thick Scum' not about to become takeaway staple (3,3) DIM SUM {DIM}{ScUM}

20 On the radio, noticed a creepy-crawly (6) SPIDER (~spied a}

23 Glitzy girl losing heart in the morning (4) GLAM {GirL}{AM}

Reference List
Quiet = P, Love = 0, About = C