Related Clues:

• Iron and Bronze, for two
• Piles on birthdays
• Golden and Bronze, e.g.
• Gets better?
• Shakespeare's seven
• Loses immediacy
• Word on a toy package
• Who-knows-how-long
• Long periods
• Sits in the cellar, maybe
• Loses freshness
• ''Rock of ___''
• Innocence and Aquarius
• Word of a toy's package
• Grows wiser, e.g.