Possible Clues:

• Like Tom Thumb
• Youth taking year - or minute?
• Small, like the numbers between twelve and twenty?
• ____-weeny (little)
• Very little relating to adolescents? Why, you might say
• ___-weeny (little)
• Small, like an adolescent
• Young girl perhaps with yen for mini
• Tiny prams missing from repayments
• With 69-Across, really small