Related Clues:

• Agreed, losing heart as did 'The Picture of Dorian Gray'
• Stale, say
• Entered a new decade, say
• Grew mature
• Puckered, say
• Like a joke told far too often
• See 4
• See 16
• See 12
• Old French artist when climbing loses direction
• 'A-Levels? I'd swot!' - possibly that's traditional 'wisdom'
• French painter rises shortly over the hill
• Old painter's abridged reflection
• Elderly painter largely rejected
• Maturing drink in silver container