Something the harness collector may hunger for? (7)
I believe the answer is:
rarebit
'hunger for?' is the definition.
The definition suggests a singular noun which matches the answer.
'something the harness collector' is the wordplay.
I cannot really see how this works, but
'something' could be 'it' (both can refer to an object) and 'it' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'may' acts as a link.
Can you help me to learn more?
(Other definitions for rarebit that I've seen before include "Simple dish" , "Dish of grilled cheese on toast" , "See 8 Across" , "Melted cheese on hot toast" , "Welsh food?" .)