PREVIOUS SOLUTION

Across: 1 Horsepower;8 Bagel; 9 Epitaph; 10 Cinders; 11 Drive; 12 Alternate; 15 Posed; 17 Gumdrop; 19 Long ago; 20 Roots; 21 Exasperate.

Down: 2 Organ; 3 Salient; 4 Pressure group; 5 Weird; 6 Realise; 7 Shoe; 8 Back; 12 Absence; 13 Admirer; 14 Opus; 15 Pale; 16 Drama; 18 Roost.