Possible Clues:

• Single payment
• Large single payment
• Large expressions of doubts about terms of previous one-off payment
• Mass in Latin one is ready to give once?
• Politicians invested in large universities with millions in one-off payment
• Deposit, say, posh pharmacist in Hebridean stack
• Whole payment
• Tolerate problem to get complete amount
• Chubby US mother avoiding starters and large chunk of bread
• Single payment as opposed to many instalments