Make good your sins an hour after midday? (5)
I believe the answer is:
atone
'make good' is the definition.
(I've seen this before)
'your sins an hour after midday?' is the wordplay.
I cannot really understand how this works, but
'an' could be 'one' and 'one' is located in the answer.
The remaining letters 'at' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for atone that I've seen before include "Recompense" , "Expiate" , "Pay the price" , "In agreement - sounds singular" , "remedy" .)