One's naughty spirit as an individual (7)

I believe the answer is:

oneself

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'one's naughty spirit' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'an individual' is the wordplay.
'an' becomes 'one'.
'individual' becomes 'self' (self is a kind of individual).
'one'+'self'='ONESELF'

'as' acts as a link.

Can you help me to learn more?

(Other definitions for oneself that I've seen before include "Mirror image" , "individual" , "Reflexive pronoun" , "Lose fen (anag)" , "Being by this is alone" .)

I've seen this clue in The Globe and Mail.

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