Possible Clues:

• Auteur of The Pied Piper
• A man who's not settled, we hear
• Old, not old — that's up to Wilfred
• Keating-___ Act
• Wilson who voiced Lightning McQueen in "Cars" films
• 'The Grand Budapest Hotel' actor Wilson
• Name hidden in 'low energy'
• Actor Wilson of 'Wedding Crashers'
• Wilfred --, English poet of World War I
• Meany of fiction