1: Early missionary or saint in a European setting (7)
5: A representative may be a scamp (3)
7: Slow passage where rebel leader joins in gaol-break (5)
8: In the act an organ is brought forth (9)
9: Singers in a special Tosca production (5)
10: Backblock not all there (3)
11: Will addition show 100 + 0 + 500 + 99 + 49? (7)