Pub profit with agreement between parties (7)

I believe the answer is:

bargain

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'agreement between parties' is the definition.
I can't tell whether this definition defines the answer.

'pub profit' is the wordplay.
'pub' becomes 'bar' (both are drinking establishments).
'profit' becomes 'gain' (synonyms).
'bar'+'gain'='BARGAIN'

'with' acts as a link.

Can you help me to learn more?

(Other definitions for bargain that I've seen before include "Good buy" , "Deal; cheap buy" , "Great deal!" , "Cheap purchase" , "Special offer" .)

I've seen this clue in the Sydney Morning Herald.

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