Grapple (7)
I believe the answer is:
wrestle
'grapple' is the definition.
(I know that grapple can be written as wrestle)
This is the entire clue.
(Other definitions for wrestle that I've seen before include "Struggle, grapple" , "Fight - get to grips (with)" , "Grapple on canvas" , "Struggle physically or mentally" , "Fight; struggle" .)