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