Creep like a crab (5)
I believe the answer is:
sidle
'creep like a crab' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sidle that I've seen before include "Move along sideways" , "Slink, creep, sneak" , "Walk crabwise" , "Make cautious progress" , "Walk sideways in furtive manner" .)