Shakespeare's fairy queen (7)
I believe the answer is:
titania
'shakespeare's fairy queen' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for titania that I've seen before include "Fairy Queen (MND)" , "asinine lover" , "Fairy queen (AMND)" , "Wife of Oberon (MND)" , "Oberon's queen (MND)" .)