Related Clues:

• Hat or teacup part
• Top edge of a container
• Hat part to shape
• Lip, bloody lip!
• Edge attached to side of boater?
• Edge around a hat
• Cowboy hat feature
• Projecting edge of a hat
• Edge of a fedora
• Cap edge
• Fill-up point
• Part of a cap
• Top edge of something
• Lip; part of 6 Down
• Spills go over it