Related Clues:

• "Burp" Tupperware
• Stick down
• Tightly secure
• Aquatic mammal close up
• Team Six serviceman
• Blubbery bather
• Sample of cheese - a luxury in Cork
• Certain Navy specialist
• Animal that claps
• __ the deal
• Plug, say
• Beach-ball balancer
• Ball-balancing creature
• Walrus cousin
• US commando in false alarm