This crossword No. 13104 clues and answers were published on Wed 09 May 2012 and the puzzle can be visited by following The Guardian Quick Crossword No. 13104 link.
All Across Clues and Answers:
5-across – Every part, both good and bad : WARTSANDALL
7-across – Skilled at gaining an advantage by deceit : WILY
8-across – Disdain : CONTEMPT
9-across – Common wasteland plant — film oil : MILFOIL
11-across – Moment : JIFFY
13-across – A further time : AGAIN
14-across – Grow : DEVELOP
16-across – Street light : LAMPPOST
17-across – French city on the Rhone : LYON
18-across – Trucker : LORRYDRIVER
All Down Clues and Answers:
1-down – Making a point of appearing interested in painting, sculpture etc : ARTY
2-down – Medium : PSYCHIC
3-down – Mindless : INANE
4-down – Early form of plastic used for tableware, telephones etc : BAKELITE
5-down – Place of prayer and lamentation for Jews in Jerusalem : WAILINGWALL
6-down – Victory circuit : LAPOFHONOUR
10-down – Something of little value or significance : FRIPPERY
12-down – Gymnast’s costume : LEOTARD
15-down – Small growth, usually benign : POLYP
17-down – Volcanic stuff : LAVA
This crossword has in total 20 where 10 are across and 10 are down.