Related Clues:

• Musical Ma
• Duncan product
• Be on the brink
• Go back and forth
• Experience highs and lows
• String toy
• School board?
• Up-and-down toy
• Ma(n) with a bow
• It can go around the world
• Rock on the edge
• Waver precariously
• Fluctuate repeatedly
• It takes two to do this
• Need for ''walking the dog''