Be successful in swindle (3)

I believe the answer is:
win
'be successful' is the definition.
(I've seen this before)
'in swindle' is the wordplay.
'in' indicates a hidden word.
'WIN' is hidden within 'swindle'.
(Other definitions for win that I've seen before include "Come first" , "Succeed, conquer" , "Achieve victory" , "Finish in first place" , "Be victorious or succeed" .)