Related Clues:

• Barker, e.g.
• Make leakproof
• Pursue closely
• __ of approval
• Toto, for one
• One of a Navy elite
• Performer with a balancing act
• 8-Across, for one
• Mark of approval
• Stamped symbol
• 'Man's best friend'
• Signet
• Shut up tight
• Mutt
• Circus performer, perhaps