Fleece party over allowance payment (13)
I believe the answer is:
consideration
'payment' is the definition.
(I've seen this before)
'fleece party over allowance' is the wordplay.
'fleece' becomes 'con' (I've seen this before).
'party' becomes 'side' (eg a side or party in a contract).
'over allowance' becomes 'ration' (I've seen this before. I am not sure about the 'over' bit.).
'con'+'side'+'ration'='CONSIDERATION'
Can you help me to learn more?
(Other definitions for consideration that I've seen before include "examination" , "Study" , "Kindness" , "Reward; careful thought" , "Bearing in mind - payment" .)