This crossword No. 9505 clues and answers were published on Wed 18 Oct 2000 and the puzzle can be visited by following The Guardian Quick Crossword No. 9505 link.
All Across Clues and Answers:
1-across – Elderly married couple in domestic harmony : DARBYANDJOAN
9-across – Irish nationalist, Robert : EMMET
10-across – Having little depth : SHALLOW
11-across – Estimate value of – speed : RATE
12-across – Give up : RENOUNCE
14-across – Attic : GARRET
15-across – Capital of the Bahamas : NASSAU
18-across – Vulgar, indecent talk : RIBALDRY
20-across – Brass instrument of low pitch : TUBA
22-across – Parvenu : UPSTART
23-across – Supple : LITHE
24-across – Act as host or hostess : DOTHEHONOURS
All Down Clues and Answers:
2-down – Instrument measuring electrical current : AMMETER
3-down – Island in the Firth of Clyde : BUTE
4-down – Response – solution : ANSWER
5-down – From corner to corner : DIAGONAL
6-down – Crease-resistant acrylic fabric : ORLON
7-down – Heaven – an ideal city : NEWJERUSALEM
8-down – Roundabout : MERRYGOROUND
13-down – Sneak : TELLTALE
16-down – Stroll : SAUNTER
17-down – Cave : GROTTO
19-down – Beleaguer : BESET
21-down – Male singing voice : ALTO
This crossword has in total 24 where 12 are across and 12 are down.