Related Clues:

• Head of gunners comes in to consider heaving man on board
• Man on board, Sir
• Talk about dark horse in game!
• Man on board to consider going back round Gibraltar initially
• Chess piece (in shining armour?)
• Chess piece or British Columbia inlet
• A chess piece
• The horse's head in chess
• One might be in the mail
• Violator of common-sense pinballing
• Sort of thinking lacking in man going overboard
• Man in the dark, reportedly
• Board member to consider retiring around end of spring
• Fighter in armor
• Man in shining armor