Possible Clues:

• Its beams are important, however
• Vessel providing guidance to others
• It shows up offshore, even in heavy weather
• Guiding vessel sounds as if it has no cargo
• Delicate, small and up-to-date navigational warning
• Craft displayed here may be brilliant
• Moored vessel, and eminent people with it
• Flambés a joint and at sea that could spell danger
• Beacon vessel at sea
• Vessel illuminating dangers of sheep's lungs and haunch