This crossword No. 1387 clues and answers were published on Sun 01 May 2022 and the puzzle can be visited by following The Guardian Speedy Crossword No. 1387 link.
All Across Clues and Answers:
1-across – Summary, synopsis : PRECIS
4-across – Long piece of : SCREED
9-across – Layer : STRATUM
10-across – Improvise, speak without notes : ADLIB
11-across – Muslim religion : ISLAM
12-across – Large out-of-control fire : INFERNO
13-across – Native of Moscow : MUSCOVITE
17-across – Authorise, officially permit : LICENSE
19-across – Devoutly religious : GODLY
21-across – Multiplied by itself twice : CUBED
22-across – Frankness : CANDOUR
23-across – Heavy petroleum : DIESEL
24-across – Stopped : CEASED
All Down Clues and Answers:
1-down – Throughout the text : PASSIM
2-down – Register, sign on : ENROL
3-down – Narrow strip of land in the sea : ISTHMUS
5-down – Seed husks; refuse : CHAFF
6-down – Make more extensive : ENLARGE
7-down – One owing money : DEBTOR
8-down – Unlimited power : OMNIPOTENCE
13-down – Morbid, gruesome : MACABRE
14-down – Unsophisticated young woman : INGENUE
15-down – Even-tempered, calm : PLACID
16-down – Cross-bred : HYBRID
18-down – Light touch or push : NUDGE
20-down – Detritus, rubbish : DROSS
This crossword has in total 26 where 13 are across and 13 are down.