Business affair (7)

I believe the answer is:

concern

This clue is a double definition.

'business' is the first definition.
(eg 'none of your concern', 'none of your business')

'affair' is the second definition.
(I've seen this before)

(Other definitions for concern that I've seen before include "Affair" , "Involve" , "Business - worry" , "Firm - interest" , "Disquiet" .)

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

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