Fairy-tale fiend (4)
I believe the answer is:
ogre
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fairy-tale fiend</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ogre that I've seen before include "Man-eating giant of folklore" , "Fierce giant" , "One to gobble flesh" , "Terrifying giant" , "Ugly giant" .)