The bare ingredients of a simple brew (4,3)
I believe the answer is:
herb tea
'a simple brew' is the definition.
The answer and definition 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?
'the bare ingredients' is the wordplay.
'ingredients' indicates an anagram.
'the'+'bare'='thebare'
'thebare' is an anagram of 'HERB TEA'.
'of' is the link.
Can you help me to learn more?
(Other definitions for herb tea that I've seen before include "drink" , "it's healthy" .)