Last solution

Across: 1 Prohibition; 9 Mediate; 10 Ameer; 11 Roost; 12 Cunning; 13 Gaping; 15 Giggle; 18 Airship; 20 Irons; 22 Legal; 23 Evasion; 24 Interpreted. Down: 2 Radio; 3 Hearten; 4 Bleach; 5 Train; 6 Opening; 7 Impregnable; 8 Progressing; 14 Paragon; 16 Imitate; 17 Upkeep; 19 Halve; 21 Opine.