Related Clues:

• Part of graduation attire
• Maximum limit
• Toothpaste tube cover
• Baseball headgear
• Feather holder?
• Pop-bottle topper
• Cub topper
• Toothpaste tube top
• Tam, e.g.
• Toothpaste-tube cover
• Baseball player's hat
• One may be applied to salaries
• It's often put on backward
• Graduating student's headwear
• Upper bound