In my quest I discover an aura of heightened interest (8)

I believe the answer is:

mystique

I'm a little stuck... Click here to teach me more about this clue!

'an aura of heightened interest' is the definition.
(I've seen this before)

'in my quest i discover' is the wordplay.
'my quest i' can be anagrammed to 'MYSTIQUE'.
However, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for mystique that I've seen before include "Air of secrecy" , "Aura or secrecy or obscurity" , "Glamorous property" , "Aura of heightened interest" , "Aura of magic" .)

I've seen this clue in the Sydney Morning Herald.

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