This crossword No. 27887 clues and answers were published on Wed 31 Jul 2019 and the puzzle can be visited by following The Guardian Cryptic Crossword No. 27887 link.
All Across Clues and Answers:
8-across – Something online for minors, I say, drinking liquor : CHOOCHOO
9-across – See 7 : EARTH
10-across – Warning of mass extinction, now all kicking off : OMEN
11-across – Something sinister locked in extremes of nature for post-apocalyptic writer : NEVILSHUTE
12-across – Light bracket formerly placed behind sack, oddly : SCONCE
14-across – Relative bound by fancy contract : COVENANT
15-across – Terrible mistake detailed about one reaching end of game, extreme temperatures — with this? : CLIMATE
17-across – Figure is covering page in magazine : ELLIPSE
20-across – Ballet move: sweep featuring sliding over of booty : GLISSADE
22-across – In fiendish Satan’s triumph, hope’s ending for God : THEMAN
23-across – Parched, so a brandy mixed with last of lemonade : DRYASABONE
24-across – Critical time off: no, quite the opposite : HIGH
25-across – See 1 : AGENT
26-across – See 22 : UPSTAIRS
All Down Clues and Answers:
1-down – Substance producing effect, bringing about 15 3 : CHEMICAL
2-down – See 24 across : NOON
3-down – See 15 : CHANGE
4-down – Send down rook, queen half hidden : CONVICT
5-down – Not quite everything contained by flood barriers after a rise — in this? : SEALEVEL
6-down – Capable of grasping vacuous ideas, help ne’er arranged : PREHENSILE
7-down – Very much that’s heartbreaking with empty pockets, oh my Lord! : WHATON
13-down – Punched by Mafia’s leader, Irishman doubled up is an informer : NAMESNAMES
16-down – Social affair thus far coming up, cut by a fraction : TEAPARTY
18-down – Hackney’s condition is surprising : STAGGERS
19-down – Bang on about Italian author’s good manners : DECORUM
21-down – Promoting toilet humour ultimately, Paul regularly immature : LARVAL
22-down – Belief in 22 26 is hard in worrying times : THEISM
24-down – With gas on, a temperature warmer? : HEAT
This crossword has in total 28 where 14 are across and 14 are down.