Related Clues:

• Carries on without leader a long time, however short (as 13)
• ... of Man, according to WB Yeats
• Donkey's years
• (What seems) a very long time
• Game-box info
• Gains maturity
• Shakespearean septet in ''As You Like It''
• "For children of all ___!"
• Personal numbers?
• A blue moon, so to speak
• Yellows or grays, perhaps
• It¿s a long time between being five and 25 years old
• Pretty long time
• Has birthday after birthday
• In America, doing these crosswords, ultimately grows old