Musician making a racket (7)
I believe the answer is:
fiddler
'musician' is the definition.
(fiddler can informally mean a violinist)
'a racket' is the wordplay.
I cannot really understand how this works, but
'racket' could be 'fiddle' (both can mean a scam) and 'fiddle' is located in the answer.
A single letter 'r' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
'making' is the link.
Can you help me to learn more?
(Other definitions for fiddler that I've seen before include "Great musical ''....... on the roof''" , "Type of crab; one on the Roof" , "Violinist (colloq.)" , "Famous musical '. . . . . . . on the Roof'" , "Violinist (informal)" .)