Crossword Genius

Nautical chairman? (5)

Ross

I believe the answer is:

bosun

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'nautical chairman?' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see an association between them that I don't see?

This is all the clue.

Can you help me to learn more?

(Other definitions for bosun that I've seen before include "Bonus for a small boatswain" , "Petty officer on a merchant ship" , "An abbreviated boatswain" , "Ship's officer in charge of equipment and crew" , "A short boatswain" .)

I've seen this clue in the Evening Standard.
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