Lawbreaker gets shepherd's staff (5)
I believe the answer is:
crook
I believe this clue is a double definition.
'lawbreaker' is the first definition.
(thesaurus)
'shepherd's staff' is the second definition.
(I've seen this before)
'gets' acts as a link.
(Other definitions for crook that I've seen before include "Hooked staff" , "Twister" , "Swindler - crosier - ill (in Australia)" , "Well, no" , "Fence, perhaps" .)