How mince is cooked for a Chinese dish (4,4)
I believe the answer is:
chow mein
'a chinese dish' is the definition.
(I've seen this in another clue)
'how mince is cooked' is the wordplay.
'is cooked' is an anagram indicator (letters cooked into a new form).
'how'+'mince'='howmince'
'howmince' is an anagram of 'CHOW-MEIN'.
'for' is the link.
(Other definitions for chow mein that I've seen before include "'Chinese dish with fried noodles (4,4)'" , "Chinese-style noodle dish" , "Chinese dish of noodles, meat and veg" , "Chop suey with noodles" , "Chinese/US noodle dish" .)