Related Clues:
- An e-mail doesn't need one
- "Burp" the Tupperware
- Whiskered swimmer
- It can be airtight or waterproof
- Corner piece?
- Notary public's device
- "Forever" post office product
- Eskimo hunter's prey
- Animal balancing a beachball on its nose
- Bin Laden hunter
- Beach ball balancer
- Bewhiskered mammal
- Circus ___
- Legal document feature, sometimes
- Impress with a mark