Small coin not quite enough for broth (3)
I believe the answer is:
sou
'small coin' is the definition.
(historical coin)
'not quite enough for broth' is the wordplay.
'not quite enough for' means to remove the last letter (most but not all of the letters).
'broth' becomes 'soup' (I've seen this before).
'soup' with its last letter taken away is 'SOU'.
(Other definitions for sou that I've seen before include "Very little to spend" , "bit of money" , "Former small French coin" , "16 French coin" , "Old French coin of little value" .)