Related Clues:

• Like rush hour traffic
• Rock singer?
• Traffic sound
• Like molasses
• Fire sign?
• Powder holder
• Show impatience in traffic
• Game ender, perhaps
• ___-mo camera
• Unicorn feature, e.g.
• Highway advisory
• Pitch preceder
• Trumpet or cornet
• Part of a filming technique, briefly
• Gaggle sound