Grapple with gear (6)
I believe the answer is:
tackle
I believe this is a double definition.
'grapple' is the first definition.
(I've seen this before)
'gear' is the second definition.
(I know that tackle is a type of gear)
'with' is the link.
(Other definitions for tackle that I've seen before include "Come to grips with the fishing equipment" , "Try - made by a rugby player?" , "Compete for ball" , "Have a go at the one with the ball" , "In rugby, intercept opponent running with ball" .)