Fish or steak minced (5)
I believe the answer is:
skate
'fish' is the definition.
(skate is a kind of fish)
'steak minced' is the wordplay.
'minced' indicates anagramming the letters.
'steak' anagrammed gives 'SKATE'.
'or' acts as a link.
(Other definitions for skate that I've seen before include "Food fish" , "Large edible ray" , "Flat fish" , "Type of ray" , "Ice --; roller --" .)