Accepting singular receipts (6)
I believe the answer is:
taking
'accepting' is the definition.
('take' can be a synonym of 'accept')
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for taking that I've seen before include "Seizing, appropriating" , "Removal" , "Removing; stealing" , "Extra item added to book" , "Attractive" .)