Maryland seafood specialty (4)
I believe the answer is:
crab
'maryland seafood specialty' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for crab that I've seen before include "Marine crustacean (seen on 1 across?)" , "Shellfish with pincers" , "Seafood (that can be caught by a rower?)" , "winch" , "Decapod crustacean" .)