Answer:

MAHI

Answer	Crossword Clue
MAHI	Dolphinfish
MAHI	Half a fish?
MAHI	When doubled, a fish

MAHI	When doubled, dolphinfish
MAHI	Food fish, for short
MAHI	When repeated, a food fish
MAHI	Half a fish
MAHI	Literally, "strong" in Hawaiian
MAHI	When repeated, a Hawaiian food fish
MAHI	Half a Hawaiian fish
MAHI	When repeated, a fish

MAHI	Hawaiian for "strong"
MAHI	Half a food fish
MAHI	Either half of a Hawaiian fish
MAHI	When doubled, a Hawaiian fish
MAHI	When doubled, a food fish
MAHI	Half a tuna?
MAHI	When repeated, a dolphinfish
MAHI	Half a seafood order

MAHI	Dolphinfish, cut in half?
MAHI	Half of an Hawaiian fish
MAHI	When doubled, a common dolphinfish
MAHI	When repeated, a Hawaiian fish
MAHI	Hawaiian seafood, informally
MAHI	Hawaiian fish, on menus
MAHI	Luau serving, for short
MAHI	Dolphinfish, when doubled

MAHI	When doubled, a tropical fish
MAHI	Half of a Hawaiian fish
MAHI	When doubled, a dolphinfish
MAHI	When repeated, a dolphin
MAHI	When doubled, a seafood entree
MAHI	Half of a fish?
MAHI	Hawaiian fish, informally
MAHI	When doubled, a shore dinner order

MAHI	Split fish?
MAHI	Hawaiian fish, on some menus
MAHI	Half a dolphinfish
MAHI	Half a Hawaiian fish?
MAHI	Hawaiian fish, when doubled