Related Clues:

• Football helmet feature
• It may be heard before an accident
• Bra part
• Traffic sound
• Powder holder
• Leash
• Game ender, perhaps
• Unicorn feature, e.g.
• Trumpet or cornet
• Knapsack feature
• Ear bone
• It may have valves
• Rein, essentially
• Hooter
• Spaghetti, for one