Racket — that has strings attached (6)
I believe the answer is:
fiddle
This clue is a double definition.
'racket' is the first definition.
(both can mean a scam)
'that has strings attached' is the second definition.
(violins have strings)
(Other definitions for fiddle that I've seen before include "for which one takes a bow" , "Cook" , "something stringy?" , "Scam - musical instrument" , "Play - cheat" .)