PREVIOUS SOLUTION

Across: 1 Egotistical; 9 Act; 10 Insulator; 11 Honduras; 12 Newt; 14 Myriad; 16 Oblong; 18 Tac(i)t; 19 Basildon; 22 Crumbling; 23 Ass; 24 Wensleydale.

Down: 2 Get on; 3 Tribunal; 4 Sashay; 5 Isle; 6 Art Deco; 7 Mathematics; 8 Protagonist; 13 Abridged; 15 Recluse; 17 Valise; 20 Drawl; 21 Ibis.