Related Clues:

• #6
• Rear, to an admiral
• Wacky Howard
• Like some copies and courts
• Isaac with a bow
• High on the Mohs scale
• Unstable 'rents'?
• Whaler's rear end
• Shock jock
• All business
• Back, on a skipjack
• Tiller's place
• Tiller's locale
• Back on the high seas?
• Unyielding part of the ship