Trolls (5)
I believe the answer is:
elves
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">trolls</span>' is the definition.<br/ ><span class="explanation-format__explanation">(both are magical creatures)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for elves that I've seen before include "Legendary little beings" , "Sprites" , "Mythical beings" , "Santa's little helpers" , "Supernatural creatures" .)