Couple remit returns to trickster (3-5)
I believe the answer is:
two-timer
'trickster' is the definition.
(I know that two-timer is a type of trickster)
'couple remit returns' is the wordplay.
'couple' becomes 'two' (a couple can mean two of something).
'returns' is a reversal indicator.
'remit' back-to-front is 'timer'.
'two'+'timer'='TWO-TIMER'
'to' acts as a link.
(Other definitions for two-timer that I've seen before include "One sleeps around" , "Double-crosser" , "Unfaithful partner" , "One who is unfaithful to wife - twice?" , "Unfaithful person" .)