Possible Clues:

• Barrett once in Pink Floyd
• "The Madcap Laughs" Barrett
• Chaplin's half brother
• Barrett who played on the only great Pink Floyd album [*ducks*]
• Aussie airport code
• Major Aussie airport, on tags
• New South Wales airport code
• Rocker Barrett
• "Danny and the Dinosaur" author ___ Hoff
• "Sammy the Seal" writer Hoff