Related Clues:

• See 10 Down
• It's 'just a number'
• Golden, for one
• What the number of birthday candles signifies
• Yours gets a yearly increase
• Go gray, say
• Long wait
• Allows to ripen, as cheese
• ---
• Cause of some lines
• Where the sun comes up
• Bronze, Copper or Iron
• It can't go down
• Turn gray, say
• Chronology datum