Disrupting genre, arming hero, one with magical powers (8,7)

I believe the answer is:

hermione granger

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'one with magical powers' is the definition.
I know nothing about this answer so I can't judge whether this works.

'disrupting genre arming hero' is the wordplay.
'disrupting' indicates an anagram.
'genre'+'arming'+'hero'='genrearminghero'
'genrearminghero' is an anagram of 'HERMIONE GRANGER'.

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(Another definition for hermione granger that I've seen is " She's into 20 [WITCHCRAFT]".)

I've seen this clue in The Everyman puzzle in The Observer.

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