Fantasy baddie (4)
I believe the answer is:
ogre
'fantasy baddie' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ogre that I've seen before include "Fairy-tale creature" , "Wicked and inhuman person" , "Bogeyman" , "Man-eating monster of fairy tales" , "Cruel and wicked person" .)