Possible Clues:

• 'The Zoo Story' playwright
• 'A Delicate Balance' playwright
• "A Delicate Balance" playwright
• "The Sandbox" playwright
• "Who's Afraid of Virginia Woolf?" playwright Edward
• Three-Pulitzer playwright
• 'Tiny Alice' dramatist
• Edward who wrote 'Who's Afraid of Virginia Woolf?'
• 'Three Tall Women' playwright
• "The Goat, or Who Is Sylvia?" playwright