1: A hint for the snooker champ? (3)
2: Singers in a special Tosca production (5)
3: Smuggler participating in arms race? (9)
4: Consumed and digested tea (3)
5: Part of stair is erect (5)
8: Part of speech idealists rebuke (5)
9: In Howard's End - one has a passage here from Forster (5)
11: Emergency room stocks one sensitive organ (3)
13: Perform part of play (3)