Craggy peak (3)
I believe the answer is:
tor
'craggy peak' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tor that I've seen before include "Rot on a Cornish hill" , "Rocky outcrop" , "Rocky height, eg Mam" , "Dartmoor peak" , "Rot on a hill in Cornwall" .)