Fairy-tale giant (4)
I believe the answer is:
ogre
'fairy-tale 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 "Brute" , "One making giant strides" , "Ergo (anag.)" , "Human-eating giant" , "Bogeyman" .)