Dish with toast ordered by attorney (7)
I believe the answer is:
tostada
'dish' is the definition.
(tostada is a kind of dish)
'toast ordered by attorney' is the wordplay.
'ordered' is an anagram indicator.
'by' says to put letters next to each other.
'attorney' becomes 'DA' (district attorney).
'toast' with letters rearranged gives 'tosta'.
'tosta'+'da'='TOSTADA'
'with' is the link.
(Other definitions for tostada that I've seen before include "Mexican topped pancake" , "Mexican food" , "spicy food" , "Crisp 15 down" .)