YESTERDAY’S SIMPLE SOLUTION

Across: 7 Nerve; 8 Curious; 9 Enforce; 10 Emend; 12 Infectious; 15 Improbable; 18 Exist; 19 Convene; 21 Shudder; 22 Trial.

Down: 1 Indefinite; 2 Drift; 3 Gear; 4 Accede; 5 Oriental; 6 Boredom; 11 Disorderly; 13 Noontide; 14 Optimum; 16 Accord; 17 Remit; 20 Note.