It's about meeting place's income (7)
I believe the answer is:
revenue
'income' is the definition.
(revenue is a kind of income)
'it's about meeting place's' is the wordplay.
'it's about' becomes 're' (regarding).
'meeting place' becomes 'venue' (place for a meeting).
're'+'venue'='REVENUE'
(Other definitions for revenue that I've seen before include "Ready" , "A country's income as from taxes" , "Government's income" , "Earnings" , "Gross business income" .)