Answer on most of epic Faerie Queen (7)

I believe the answer is:

titania

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'queen' is the definition.
(fairy queen)

I don't understand how the rest of the clue works.

(Other definitions for titania that I've seen before include "Queen of the fairies - Uranus satellite" , "Oberon's better half?" , "Shakespeare's fairy queen" , "in the D [DREAM] ..." , "Queen of fairyland" .)

I've seen this clue in The Guardian.

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