Related Clues:

• Baseball headgear
• Pen parts
• Kids' ammo
• Beanies
• Berets and beanies
• Limits
• Excels
• Headline features, briefly
• Toothpaste-tube tops
• Mushroom heads
• Upper case, for short
• Long letters?
• Dover and Denver
• Frequent ''Jeopardy!'' subjects
• When they're locked, you look like you're shouting