This crossword No. 10498 clues and answers were published on Tue 30 Dec 2003 and the puzzle can be visited by following The Guardian Quick Crossword No. 10498 link.
All Across Clues and Answers:
1-across – Running track for horses : RACECOURSE
7-across – Intermittent : SPORADIC
8-across – Spur : GOAD
9-across – Weaving frame – seem ominously close : LOOM
10-across – Navigational instrument : SEXTANT
12-across – What stops it being stuffy : VENTILATION
14-across – Deliberately sink : SCUPPER
16-across – State of confusion – where servicemen eat : MESS
19-across – Opinion : VIEW
20-across – On the edge : MARGINAL
21-across – Crisp, rolled biscuit : BRANDYSNAP
All Down Clues and Answers:
1-down – Drive back : REPEL
2-down – Jokey drawing : CARTOON
3-down – Secret symbols : CODE
4-down – Embodiment of the USA : UNCLESAM
5-down – The ability to see – spectacle : SIGHT
6-down – Big gun : CANNON
11-down – Referee’s assistant : LINESMAN
12-down – Object of attack : VICTIM
13-down – From Spain and/or Portugal : IBERIAN
15-down – Might : POWER
17-down – Tread heavily : STAMP
18-down – Wear at the edge : FRAY
This crossword has in total 23 where 11 are across and 12 are down.