Cheat to get violin (6)
I believe the answer is:
fiddle
I believe this clue is a double definition.
'cheat' is the first definition.
(I've seen this before)
'violin' is the second definition.
('fiddle' can be a synonym of 'violin')
'to get' acts as a link.
(Other definitions for fiddle that I've seen before include "Toy - string instrument - cheat" , "(Play) a violin" , "One's played" , "Play - cheat" , "Bowed stringed instrument" .)