Crossword Genius

A whaling captain and yes - a seaman! (4)

Ross

I believe the answer is:

ahab

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'a whaling captain' is the definition.
(I've seen this before)

'yes a seaman' is the wordplay.
'yes' becomes 'ah' (I can't justify this - if you can you should give a lot more credence to this answer).
'a seaman' becomes 'ab' (short for able seaman).
'ah'+'ab'='AHAB'

'and' is the link.

Can you help me to learn more?

(Other definitions for ahab that I've seen before include "Captain hunting Moby Dick" , "Name of captain seeking Moby Dick" , "Fictional whaler" , "Whaling Captain" , "Captain of the whaler Pequod" .)

I've seen this clue in the Evening Standard.
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