Smoke at home? Criminal, with kids (5)

I believe the answer is:

fagin

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'home? criminal with kids' is the definition.
I can't judge whether this definition defines the answer.

'smoke at' is the wordplay.
'smoke' becomes 'fag' (both can mean a cigarette).
'at' becomes 'in' (synonymous in some cases - eg at school, in school).
'fag'+'in'='FAGIN'

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(Other definitions for fagin that I've seen before include "Dickens villain" , "Gang-leader" , "Dickensian villain" , "Gang leader (Oliver Twist)" , "Dickens' thief/receiver" .)

I've seen this clue in The Independent.

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