I think i have gone wrong somewhere, so the given letters may be wrong too!
10a C & B (3-3-3) O?T / ?N? / ??T
11a Cricketer with many a hothead in the group (5) ??T??
4d Gun doesn't start siren(6) H?????
6d Singular science is automatic (7) R???T?C
9d Keep altering piece of meat before receiving some money (4,3,6) ???P / ?N? / C?A?G?
Many thanks!