Last solution

Across: 1 Practice; 5 Team; 9 Afar; 10 Evenness; 11 Vital; 12 Leakage; 13 Independently; 18 Intermix; 19 Cage; 20 Ascribe; 21 Penal; 22 Easy; 23 Protrude.

Down: 2 Ruffian; 3 Carnage; 4 Civil engineer; 6 Elegant; 7 Mystery; 8 Insane; 13 Imitate; 14 Detects; 15 Permit; 16 Nuclear; 17 Laggard.