Related Clues:
- North American, I'm sorry to say, turning up more than half undressed
- An Inuit is likely to see one close up
- Make watertight assurance
- Close relative of the walrus
- Circus performer shut up
- Make waterproof - stamp
- Authorise - plug
- Aquatic animal - to make an impression
- Sea beast - authenticating mark
- Aquatic carnivore
- Aquatic mammal - close securely
- Close tightly - mammal
- Close up - marine mammal
- Marine animal
- Authenticating stamp