This crossword No. 9720 clues and answers were published on Thu 28 Jun 2001 and the puzzle can be visited by following The Guardian Quick Crossword No. 9720 link.
All Across Clues and Answers:
1-across – Change into – suit : BECOME
4-across – Spiked drink – thrashed : LACED
7-across – Slough – marsh : MORASS
8-across – Maiden : DAMSEL
9-across – Band – call : RING
10-across – Perpetual – continual : UNENDING
12-across – Appetizing dish : HORSDOEUVRE
17-across – Weaker contestant : UNDERDOG
19-across – Sweet – sour : TART
20-across – Martial art : KARATE
21-across – Fixed – caught : NAILED
22-across – Senior – tree : ELDER
23-across – Loophole : EYELET
All Down Clues and Answers:
1-down – Rude – vulgar – rustic : BOORISH
2-down – Horse – plate : CHARGER
3-down – Led astray : MISGUIDED
4-down – Find out – assimilate facts : LEARN
5-down – Dismiss – money handler : CASHIER
6-down – Flood : DELUGE
11-down – Crisis : EMERGENCY
13-down – Arranged – not voluntary : ORDERED
14-down – Acid – criticism : VITRIOL
15-down – Serious – money deposit : EARNEST
16-down – Fasten up – give way : BUCKLE
18-down – Helicopter blade : ROTOR
This crossword has in total 25 where 13 are across and 12 are down.