This crossword No. 9376 clues and answers were published on Sat 20 May 2000 and the puzzle can be visited by following The Guardian Quick Crossword No. 9376 link.
All Across Clues and Answers:
5-across – British king in play : CYMBELINE
8-across – English king in play : JOHN
9-across – Prisoner _______ : ATTHEBAR
10-across – Danish king of England : CANUTE
11-across – Danish king in play : HAMLET
13-across – Be about to take place : IMPEND
15-across – Great English king : ALFRED
16-across – Loss of light, consciousness, or information : BLACKOUT
18-across – British king in play : LEAR
19-across – Equal : ALLSQUARE
All Down Clues and Answers:
1-down – Melody for singing in church : HYMNTUNE
2-down – On fire : ABLAZE
3-down – : GLITCH
4-down – Formerly – not repeated : ONCE
6-down – Edinburgh thoroughfare : ROYALMILE
7-down – Not being noble, it soon tarnishes : BASEMETAL
12-down – They keep one warm – or quiet? : MUFFLERS
14-down – Oedema : DROPSY
15-down – : ARTHUR
17-down – Old English king! : COLE
This crossword has in total 20 where 10 are across and 10 are down.