It's eaten with some salt and a piece of bread (5)
I believe the answer is:
salad
'piece of bread' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'it's eaten with some salt and a' is the wordplay.
'it's eaten' becomes 'lad' (I can't explain this - if you can you should give a lot more credence to this answer).
'with' says to put letters next to each other.
'some' says to take the initial letters.
'and' says to put letters next to each other.
The initial letter of 'salt' is 's'.
's'+'a'='sa'
'lad' after 'sa' is 'SALAD'.
Can you help me to learn more?
(Other definitions for salad that I've seen before include "One that may be dressed for dinner" , "Raw, green, veg" , "rabbit food" , "vegetarian dish" , "Raw greens, mainly" .)