Cunningly get the better of (6)
I believe the answer is:
outfox
'cunningly get the better of' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for outfox that I've seen before include "Surpass in cunning" , "Be too clever for in vulpine manner" , "Be too tricky for" , "Defeat by cleverness" , "Defeat with cunning" .)