Food that is eagerly sought by numismatist? (7)
I believe the answer is:
rarebit
'food' is the definition.
(rarebit is a kind of food)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for rarebit that I've seen before include "Toasted cheese and bread" , "mouthful?" , "Arbiter of Welsh dish with melted cheese on toast" , "on Welsh table?" , "Dish of grilled cheese on toast" .)