Last solution

Across: 1 Cite; 3 Campaign; 9 Noxious; 10 Levee; 11 Second nature; 13 Exotic; 15 Afresh; 17 Superstition; 20 Twist; 21 Elevate; 22 Mutilate; 23 Very.

Down: 1 Canister; 2 Toxic; 4 Assent; 5 Pilot-officer; 6 Inverse; 7 Need; 8 Coincidental; 12 Thundery; 14 Oculist; 16 Assert; 18 Irate; 19 Item.