Fictional obsessive sailor (4)

I believe the answer is:

ahab

(Other definitions for ahab that I've seen before include "Jezebel's husband, wicked king in the 'Old testament'" , "Name of captain seeking Moby Dick" , "Fictional whaler" , "Jezebel's husband - Moby Dick's hunter" , "Ancient king of Israel" .)

I've seen this clue in the Newsday.

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