Tolkien baddie (3)
I believe the answer is:
orc
'tolkien baddie' 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 "Killer-whale" , "Imaginary creature" , "Mythical monster" , "Fierce goblin" , "Sea monster; or Tolkien character" .)