Related Clues:

• Instrument seen in 27-Across
• Schroeder's instrument in 'Peanuts'
• What a lovestruck Lucy is often seen leaning on
• Schroeder's most prized possession
• Small keyboard
• Tot's keyboard
• Child's instrument
• Schroeder plays one, in the comics
• Instrument for a tot
• Child's keyboard
• Plastic keys?