Folklore giant (4)
I believe the answer is:
ogre
'folklore giant' 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 "'Demon, fiend (4)'" , "Man-eating monster of fairy tales" , "Giant who eats people" , "Has a monstrous role" , "Brute" .)