Possible Clues:

• In the matter of the meeting there, there's money in it
• In the matter of the money for the meeting
• 27-Across output
• Income from tax
• Regret being about to level out income
• Income, or people demanding a cut?
• Earnings on location
• That's the finance about the meeting place
• That's the money you get from the meeting there
• Regret about unvarying income