Stupid amount needed for Chinese dish (3,3)
I believe the answer is:
dim sum
'chinese dish' is the definition.
(I've seen this before)
'stupid amount needed' is the wordplay.
'stupid' becomes 'dim' (I've seen this before).
'amount' becomes 'sum' ('sum' can be a synonym of 'amount').
'needed' is a charade indicator (letters next to each other).
'dim'+'sum'='DIM SUM'
'for' acts as a link.
(Other definitions for dim sum that I've seen before include "something to take away?" , "oriental dish" , "Chinese dumpling dish" , "parcels from China" , "starters?" .)