Related Clues:

• One taking a first step
• Small amount of liquor
• Young boy
• 50-Across rider
• Bambino
• See 67-Across
• Little squirt
• Munchkin
• Moppet
• Chip off the old block
• New walker
• Wobbly walker, perhaps
• Seatmate for Santa
• Trike rider
• One might be on a crib sheet