This crossword No. 10577 clues and answers were published on Wed 31 Mar 2004 and the puzzle can be visited by following The Guardian Quick Crossword No. 10577 link.
All Across Clues and Answers:
5-across – Lawyer preparing cases for barristers : SOLICITOR
8-across – Wild pig : BOAR
9-across – Politically incorrect old rag doll : GOLLIWOG
10-across – Milky Way, for example : GALAXY
11-across – Hollow cylindrical containers, collectively : TUBING
13-across – Steel beam : GIRDER
15-across – German POW camp in WWII : STALAG
16-across – Showdown at the OK Corral : GUNFIGHT
18-across – Monarch : KING
19-across – Australia and/or New Zealand : DOWNUNDER
All Down Clues and Answers:
1-down – Glutton : GOURMAND
2-down – Having little nervous bursts of laughter : GIGGLY
3-down – Small hand tool – cocktail of vodka or gin with lime juice : GIMLET
4-down – Asian desert, Chinese name Shamo : GOBI
6-down – Eating food in large quantities : VORACIOUS
7-down – Water jets : FOUNTAINS
12-down – Scab : BLACKLEG
14-down – : RAGING
15-down – Placing in a specific location : SITING
17-down – Amphibian : FROG
This crossword has in total 20 where 10 are across and 10 are down.