Fairy or elf (5)
I believe the answer is:
pixie
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">fairy</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that pixie is a type of fairy)</span><br/ ><br/ >'<span class="explanation-format__original">elf</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that elf can be written as pixie)</span><br/ ><br/ ></span>
(Other definitions for pixie that I've seen before include "Small supernatural being in fairy tales" , "Mischievous fairy" , "Elf, imp" , "Little person" , "Elfin fairy" .)