Single compensation payment for an injury? (4,3)
I believe the answer is:
lump sum
'single compensation payment' is the definition.
'lump sum' can be an answer for 'payment' (I have seen 'Single payment' mean 'lump sum' so perhaps 'payment' could also mean 'lump sum'). I'm not sure about the 'single compensation' bit.
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for lump sum that I've seen before include "Whole payment" , "Single payment as opposed to a number of smaller ones" , "as pension may be part-paid?" , "Large single payment" , "Single amount of money" .)