Rhode Island’s one and only minced meat dish (7)
I believe the answer is:
rissole
'meat dish' is the definition.
(I've seen this before)
'rhode island's one and only' is the wordplay.
'rhode island's' becomes 'ri's' (US postal abbreviation).
'one and only' becomes 'sole' (synonyms).
'ris'+'sole'='RISSOLE'
'minced' is the link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for rissole that I've seen before include "Spiced meat coated in breadcrumbs and fried" , "Fried ball of minced food" , "Sil rose for the meatball" , "Fried meat/breadcrumb ball" , "Losers I find in the chopped meat dish" .)