Cynthia baked bananas when she was younger? (12)

I believe the answer is:

backintheday

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'she was younger?' is the definition.
I know nothing about this answer so I can't judge whether this works.

'cynthia baked bananas' is the wordplay.
'bananas' is an anagram indicator (informal term for mad).
'cynthia'+'baked'='cynthiabaked'
'cynthiabaked' is an anagram of 'BACKINTHEDAY'.

'when' is the link.

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I've seen this clue in The Irish Times.

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