The best topping (5)
I believe the answer is:
cream
This could be a double definition.
'the best' is the first definition.
(both can mean the elite)
'topping' is the second definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe there's a link between them I don't understand?
Can you help me to learn more?
(Other definitions for cream that I've seen before include "It rises to the top, the best" , "Dairy product" , "The best part -of the crop" , "treat for cat?" , "best people" .)