The term CAPTAIN OBSESSED BY is a reference to the character Captain Ahab from Herman Melville's novel Moby-Dick. Ahab is a captain of a whaling ship who is obsessed with hunting down a white whale that had previously taken his leg. He is driven by his obsession to the point of risking his own life and the lives of his crew. The crossword solutions for this term are AHAB (4 letters) and INTO (4 letters).