Wearer of dreadlocks (5)
I believe the answer is:
rasta
'wearer of dreadlocks' is the definition.
(Rastafarians wear dreadlocks)
This is the entire clue.
(Other definitions for rasta that I've seen before include "Dreadlocked devotee" , "Jamaican cult follower (informally)" , "Religious adherent" , "Jamaican believer" , "Believer with dreadlocks" .)