Last solution

Across: 1 Bleb; 3 Imprison; 8 Copy; 9 Preclude; 11 Blandishment; 13 Tendon; 14 Better; 17 Pitilessness; 20 Specious; 21 Able; 2 Extended; 23 Feat.

Down: 1 Backbite; 2 Explain; 4 Morose; 5 Recompense; 6 Spurn; 7 Need; 10 Admonition; 12 Prospect; 15 Tremble; 16 Repute; 18 Inept; 19 Isle.