Flavouring makes money (4)
I believe the answer is:
mint
'flavouring' is the definition.
(I know that mint is a type of herb)
'money' is the wordplay.
I cannot really understand how this works, but
'money' could be 'm' (abbreviation used in economics) and 'm' is found in the answer.
The remaining letters 'int' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'makes' acts as a link.
Can you help me to learn more?
(Other definitions for mint that I've seen before include "Place authorised to make a country's coins" , "Grown in the herb garden" , "Large sum of money" , "Coin-making facility" , "Fragrant herb" .)