Hearty contribution to a meal (7)
I believe the answer is:
cabbage
This might be a double definition.
'hearty contribution' is the first definition.
The answer and definition can be both related to property as well as being singular nouns.
Maybe there's a link between them I don't understand?
'meal' is the second definition.
The answer and definition can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'to a' is the link.
Can you help me to learn more?
(Other definitions for cabbage that I've seen before include "We bag ice bath (anag) -- butterfly" , "Green vegetable" , "Variety of brassica" , "Veg" , "A Brassica plant" .)