This crossword No. 14980 clues and answers were published on Sat 12 May 2018 and the puzzle can be visited by following The Guardian Quick Crossword No. 14980 link.
All Across Clues and Answers:
1-across – Muscles : BICEPS
4-across – Hair : LOCKS
7-across – Rest periods : BREAKS
8-across – Made level : EVENED
9-across – Cord conveying liquid by capillary action : WICK
10-across – Frightful : HORRIFIC
12-across – Keyboard instrument : HARPSICHORD
17-across – Supervised : OVERSEEN
19-across – Sheltered inlet : COVE
20-across – Herb of the onion family : CHIVES
21-across – Transfer abroad : EXPORT
22-across – Respond : REACT
23-across – Squirm : WRITHE
All Down Clues and Answers:
1-down – Make bright by rubbing : BURNISH
2-down – Biscuit — firework : CRACKER
3-down – Quickly : POSTHASTE
4-down – Rigid bar : LEVER
5-down – Fir or larch, for example : CONIFER
6-down – Beguile : SEDUCE
11-down – Teller of anecdotes : RACONTEUR
13-down – The New World : AMERICA
14-down – Back of the head : OCCIPUT
15-down – Varied : DIVERSE
16-down – See eye to eye : CONCUR
18-down – Paid out — exhausted : SPENT
This crossword has in total 25 where 13 are across and 12 are down.