Related Clues:

• Became older
• Old artist coming up short
• Kept for years in a cask
• Turned brown, say
• Hid the gray in
• Became a brunette, in a way
• Allowed to ripen, as cheddar
• Acquired wisdom, per a saying
• Covered the gray, say
• Up there, so to speak
• Made colorful
• Like this puzzle?
• Recently blond, say
• A good enough day for leaders to mature
• Like much cheese and wine