Related Clues:

• On the quiet side
• Downwind, nautically
• Circulation mainstay
• Its walls withstand pressure
• Position on a ship
• Artery
• Inner tube?
• One way to turn at sea
• Major blood vessel
• Sheltered side
• Opposite of windward
• Blood supplier
• Nautical word
• It's from the heart
• Away from the wind, nautically