Possible Clues:

• Albert who wrote "The Fall"
• "The Fall" novelist
• Albert who wrote "The Plague"
• Existentialist is cold, with charm in short supply
• Albert —, French author
• Academic stream pursued by American novelist and essayist
• French writer who co-founded the newspaper Combat
• 'Le Mythe de Sisyphe' author
• Climbing tree, he pondered the human condition
• 'The Rebel' essayist