A hobbit (5)
I believe the answer is:
bilbo
'a hobbit' is the definition.
(Bilbo Baggins, a hobbit from The Lord of the Rings)
This is the entire clue.
(Other definitions for bilbo that I've seen before include "sword" , "Rapier - I blob (anag)" , "Frodo's uncle (LOTR)" , "The Hobbit hero" , "___ Baggins, a leading hobbit" .)