Possible Clues:

• 'Three Tall Women' writer
• 'Tiny Alice' dramatist Edward
• Three-Pulitzer playwright [#1 of 7]
• Playwright Edward with three Pulitzers
• 'The Man Who Had Three Arms' playwright Edward
• "The Zoo Story" dramatist Edward
• Pulitzer-winning Edward
• “The Goat, or Who Is Sylvia?” playwright
• Edward ___, 'Who's Afraid of Virginia Woolf?' playwright
• 'The Goat, or Who Is Sylvia?' playwright