Related Clues:

• Refines, as wine
• Gets grayer, usually
• "Fun for children of all ___!"
• Mellows or yellows
• A long stretch
• Allows to ripen
• "Haven't seen you in ___!"
• College classes
• Improves in the wine cellar
• Birthday units
• ". . . and children of all ___!"
• Long stretch of time
• A G rating admits them all
• Century components
• With 46-Down, well in the past