Last solution

Across: 1 Welt; 3 Saturate; 9 Tetanus; 10 Bible; 11 Discriminate;

13 Except; 15 Astral; 17 Irresistible; 20 Heave; 21 Booklet; 22 Congress;

23 Vary.

Down: 1 Withdrew; 2 Lotus; 4 Assume; 5 Urbanisation; 6 Arbiter;

7 Ewer; 8 Entrepreneur; 12 Fluently; 14 Curtain; 16 Nimbus; 18 Balsa;

19 Chic.