Corned beef dish (4)
I believe the answer is:
hash
'corned beef dish' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hash that I've seen before include "reheated meat and vegetables" , "Dish of diced meat etc - cannabis (slang)" , "Meat dish or hallucinogen" , "Mess; reheated meal" , "A finely chopped mixture of meat and potatoes" .)