PREVIOUS SOLUTION

Across: 4 Sceptic; 8 Ribbon; 9 Improve; 10 Grease; 11 Equity; 12 Lovelorn; 18 Specimen; 20 Tenant; 21 Medium; 22 Furious; 23 Frugal; 24 Educate.

Down: 1 Fragile; 2 Observe; 3 Dorsal; 5 Commence; 6 Porous; 7 Invite; 13 Obstruct; 14 Impinge; 15 Anomaly; 16 Refund; 17 Maniac; 19 Cherry.