Wrong starter missing from film director's pasta dish (10)
I believe the answer is:
tortellini
'pasta dish' is the definition.
(type of pasta)
'wrong starter missing from film director's' is the wordplay.
'wrong' becomes 'tort' (legal term).
'starter missing from' means to remove the first letter (the letter which starts the word is removed).
'film director' becomes 'fellini' (director Federico Fellini).
'fellini' with its initial letter removed is 'ellini'.
'tort'+'ellini'='TORTELLINI'
(Other definitions for tortellini that I've seen before include "Italian dish" , "Pasta is called for" , "Rings for food" , "Small filled pasta cases" , "pasta dish" .)