Possible Clues:

• “The Zoo Story” playwright
• 'The Play About the Baby' playwright
• Edward who wrote "Who's Afraid of Virginia Woolf?"
• 'Seascape' dramatist
• 'Three Tall Women' author
• "Seascape" Pulitzer-winning playwright
• Playwright Edward who wrote 'The Zoo Story'
• Edward --, US dramatist whose plays include 'Who's Afraid of Virginia Woolf?'
• 'Seascape' playwright Edward
• Three-time Pulitzer dramatist