Pub profit dishonourable blokes finally spent in sales area (7,8)
I believe the answer is:
bargain basement
'sales area' is the definition.
The definition suggests a singular noun which matches the answer.
'pub profit dishonourable blokes finally spent' is the wordplay.
'pub' becomes 'bar' (both are drinking establishments).
'profit' becomes 'gain' (synonyms).
'dishonourable' becomes 'base' (base can mean vulgar or dishonourable).
'blokes' becomes 'men' (bloke can informally mean a man).
'finally' says to take the final letters.
The last letter of 'spent' is 't'.
'bar'+'gain'+'base'+'men'+'t'='BARGAIN-BASEMENT'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for bargain basement that I've seen before include "Place for special offers" , "down here...snip!" .)