1: Several variety shows (7)

5: Hang poor Democrat from the east (5)

7: Complain about the horse (3)

8: Very clever fish ain't at sea (9)

9: 4-down Arias hit high note in some of the lungs (3,3)

10: Start reorganizing notes (5)

12: Closest home receives attention (7)

1: Clear initial rubbish in drain (3)

2: Shock with exclamations while mounting horse (9)

3: Some slippers and also shoes (7)

4: Just conservative (5)

6: Little bitty lines on a letter from Athens (7)

8: Introduction to book by mere poet (5)

11: Child is to depart, finally (3)