Crossword Genius

Well-known seagoing duck (5)

Ross

I believe the answer is:

drake

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'duck' is the definition.
(I know that drake is a type of duck)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for drake that I've seen before include "Aquatic bird" , "it's used to fish" , "old sailor" , "Male bird" , "world traveller" .)

I've seen this clue in The Globe and Mail.
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