1: Judges playing conkers? (7)

6: Oxygen is pretty amusing. (3)

7: Delete Times editorial first (5)

8: Difficult newspaper or novel (4,5)

10: Massage central skeleton for money (5)

11: Venomous enemy lurks in Caspians (3)

13: I left terminus, breaking a bone (7)

1: Cleaning aid possessed by Fragonard (3)

2: Mediterranean leaves unfashionable coins? (3)

3: Open present yonder (4,5)

4: Father's into whips and chains, a violent action (5)

5: We turned up with endless Irish pitchers (5)

8: Wooded hillock forming part of Arthur's territory (5)

9: Note vehicle in picture puzzle (5)

11: In the manner of a girl (3)

12: Plan to return with woman (3)