Rocker ____ Clapton (4)
I believe the answer is:
eric
'rocker clapton' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eric that I've seen before include "Boy's name" , "..... the Red was Norwegian 10th Century exployer" , "- Morecambe, comic" , "Fine" , "Blair, perhaps" .)