Persuaded to participate in double dealing (3)
I believe the answer is:
led
'persuaded' is the definition.
(I've seen this in another clue)
'participate in double dealing' is the wordplay.
'participate in' says the answer is hidden in the clue (I've seen 'participating in' mean this).
'LED' can be found hidden inside 'double dealing'.
'to' is the link.
(Other definitions for led that I've seen before include "Went first to show the way" , "induced to" , "was in the van" , "sort of light" , "Came first" .)