Related Clues:

• "Around the world" toys
• Round toys on strings
• Toys you can 'walk the dog' with
• Toys that you can 'walk the dog' with
• Stringed playthings
• Toys that can 'sleep'
• Stringy spinners
• Goes up and down and up ..
• 'Walk the dog' toys
• Subjects to slight ridicule
• Vacuous twerps without intelligence?
• Toys that start up?
• Playthings with strings (Note letters 3-5 in this answer + letters 2-6 in 45-Down)
• They're wound up before they sleep!