4 Across, Quarrelling Tap backing singer,providing cover (8)
10 Across, Main air that is playing, taking intros from St Hubbins/Smalls (5,3)
11 Across, ... brought about radical change "it's one louder"-I've almost cracked up (14)
13 Across, Interviewees perhaps,heading for Cleveland during tour of Spinal Tap (10)
No Letters
Many thanks