Moves like a crab (6)
I believe the answer is:
sidles
'moves like a crab' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sidles that I've seen before include "Walks sideways like crab" , "Move sideways or furtively" , "Moves sideways" , "Approaches obliquely" .)