This crossword No. 9965 clues and answers were published on Fri 12 Apr 2002 and the puzzle can be visited by following The Guardian Quick Crossword No. 9965 link.
All Across Clues and Answers:
1-across – Mighty : POWERFUL
5-across – Confidence trick : SCAM
9-across – Component of blood : SERUM
10-across – Card game – bridge : PONTOON
11-across – Tuxedo : DINNERJACKET
13-across – Charge with carbon dioxide : AERATE
14-across – Cylinder for winding thread : BOBBIN
17-across – Sits on a razor : ZOROASTRIANS
20-across – Opera by Verdi : NABUCCO
21-across – Main body – chest : TRUNK
22-across – Colleague : ALLY
23-across – Accompaniment of 11 : BLACKTIE
All Down Clues and Answers:
1-down – Shove : PUSH
2-down – Fighter : WARRIOR
3-down – Protest : REMONSTRANCE
4-down – Arbiter : UMPIRE
6-down – Criminal : CROOK
7-down – Sound of unvarying pitch : MONOTONE
8-down – Hostile : ANTAGONISTIC
12-down – East African country : TANZANIA
15-down – Feast : BANQUET
16-down – Amble : STROLL
18-down – : REBEL
19-down – Scottish island : SKYE
This crossword has in total 24 where 12 are across and 12 are down.