Camel part (4)
I believe the answer is:
hump
'camel part' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hump that I've seen before include "Feature of llama, camel" , "Mound" , "Characteristic of camel" , "Hunch - sulks" , "Raised mass; carry" .)