King of the fairies (6)
I believe the answer is:
oberon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">king of the fairies</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 oberon that I've seen before include "Satellite" , "Shakespearean role" , "...[IN DREAM] with king" , "Titania's king" , "charming king" .)