Related Clues:

• Engine part
• Rubber ring
• Flood insurance?
• This might be blown, figuratively
• Type of seal
• Blow it and you see red
• O-ring, e.g.
• Engineering ring
• Sealing ring
• Seal for a joint
• Cylinder seal
• Oft-blown rubber ring
• Something to blow when angry
• Joint seal
• It might be blown by a hot person