Deposit collected for a cut of meat (7)
I believe the answer is:
topside
'meat' is the definition.
(cut of beef)
'deposit collected for a cut' is the wordplay.
'deposit' becomes 'sid' (I can't justify this - if you can you should give a lot more credence to this answer).
'collected' indicates putting letters inside (inserted letters are collected by others).
'for' becomes 'to' (eg both can mean 'in the opinion of').
'a' becomes 'per' (eg 'one a day' means 'one per day').
'cut' means to remove the last letter.
'to'+'per'='toper'
'toper' with its final letter removed is 'tope'.
'sid' placed within 'tope' is 'TOPSIDE'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for topside that I've seen before include "Cut of beef from thigh" , "Outer cut of beef" , "Joint" , "Deposit (anag) -- cut of meat" , "Towards ship's upper decks; part of cut of beef" .)