Get to grips with rigging (6)
I believe the answer is:
tackle
I believe this is a double definition.
'get to grips with' is the first definition.
(I've seen this before)
'rigging' is the second definition.
(I know that rigging can be written as tackle)
(Other definitions for tackle that I've seen before include "Clobber" , "block" , "Grab" , "man's genitals" , "Grapple with - ship's running rigging" .)