This crossword No. 500 clues and answers were published on Sun 10 Apr 2005 and the puzzle can be visited by following The Guardian Speedy Crossword No. 500 link.
All Across Clues and Answers:
1-across – Take a risk : CHANCEONESARM
8-across – Not religious : SECULAR
9-across – Mistake : ERROR
10-across – Speck of dust : MOTE
11-across – Dissimulation : PRETENCE
13-across – Drink of the gods : NECTAR
14-across – Dashboard : FASCIA
17-across – Food of the gods : AMBROSIA
19-across – Sole : ONLY
21-across – Body of religious doctrine : DOGMA
22-across – The female side : DISTAFF
24-across – Phenomenal : EXTRAORDINARY
All Down Clues and Answers:
1-down – Lettuce : COS
2-down – Austere, Spartan : ASCETIC
3-down – Tranquil : CALM
4-down – Model of the solar system : ORRERY
5-down – Ensuing : EVENTUAL
6-down – Pinafore : APRON
7-down – Acting for money : MERCENARY
10-down – Treat roughly : MANHANDLE
12-down – Wide vista : PANORAMA
15-down – Choral work : CANTATA
16-down – Steel beam : GIRDER
18-down – Intolerant person : BIGOT
20-down – Sparkling wine : ASTI
23-down – Clairvoyant, visionary : FEY
This crossword has in total 26 where 12 are across and 14 are down.