Comestibles that make a round total (6)
I believe the answer is:
scones
'comestibles' is the definition.
The answer and definition can be both things that one consumes for nourishment as well as being plural nouns.
Perhaps there's an association between them I don't understand?
'make a round total' is the wordplay.
I cannot really see how this works, but
'a' could be 'one' and 'one' is present in the answer.
This explanation may well be incorrect...
'that' is the link.
Can you help me to learn more?
(Other definitions for scones that I've seen before include "Basic components of cream teas" , "Cakes for tea" , "Small unsweetened or lightly sweetened cakes" , "Rich biscuit-like pastry, best served with jam and butter" , "Small cakes of flour and fat, usually buttered" .)