Myfanwy's lover (3)

I believe the answer is:

fan

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

'lover' is the definition.
(synonyms)

'myfanwy's' is the wordplay.
'FAN' is hidden within the letters.
But, I'm unsure how this is indicated.

Can you help me to learn more?

(Other definitions for fan that I've seen before include "Manual cooling device - for admirer?" , "Cooling device or disciple of performer" , "Devotee; ventilator" , "Ardent admirer" , "Keen follower; cooler" .)

I've seen this clue in the Evening Standard.

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