Fraudulent schemes in a game (7)
I believe the answer is:
rackets
This clue is a double definition.
'fraudulent schemes' is the first definition.
('racket' can be a synonym of 'fraudulent scheme')
'game' is the second definition.
(rackets is a racket sport)
'in a' is the link.
(Other definitions for rackets that I've seen before include "illegal activities" , "Criminal activities" , "may be covered in the press" , "Stringed bats or loud sessions" , "Game - noises" .)