Word: seadog
A sailor accustomed to the sea. Example: The old seadog knew the storm was coming long before the rest of the crew were aware of it.
A pirate.
A seal. (marine mammal)
A charge resembling the talbot but with scales, webbed feet and a broad tail.
A dogfish.
An omen of bad luck.
A white-topped wave in an estuary.
You can find a list of possible crossword clues for SEADOG below.