Fairy tale monsters (5)
'fairy tale monsters' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for ogres that I've seen before include "Giant types" , "Fairytale giants" , "Awful brutes" , "Monstrous giants and man-eaters" , "Formidable people" .)
(Other definitions for giants that I've seen before include "they're big" , "Behbmoths, titans" , "Huge legendary beings" , "Behemoths, titans" , "men of great power?" .)