Hobbit foe (3)
I believe the answer is:
orc
'hobbit foe' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for orc that I've seen before include "Grampus" , "Mythical monster" , "Tolkienian monster" , "Fairytale monster" , "Tolkien's creation" .)