1: Smoked salmon for the auditor with hair (5)
2: Dizzy Ben is a playwright (5)
3: Conductor taking opera to Northern Ireland twice (9)
5: Bend in the middle and wind back (3)
9: Erin's heir is hardly content (5)
10: One of the Marx brothers making a comeback as talk show host (5)
11: Equips for attacks (4)
12: Fathers start to applaud, in afterthought (3)