Banter? None affected 12A 15 (4,6)

I believe the answer is:

anne bronte

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'12a 15' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'banter? none affected' is the wordplay.
'affected' indicates anagramming the letters.
'banter'+'none'='banternone'
'banternone' with letters rearranged gives 'ANNE BRONTE'.

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(Another definition for anne bronte that I've seen is " Agnes Grey author, d. 1849".)

I've seen this clue in The Independent.

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