Possible Clues:

• Writer's opera lacking spirit and suffering
• US playwright
• 'The Iceman Cometh' playwright
• "The Iceman Cometh" playwright
• ''Ah, Wilderness!'' playwright
• ''Anna Christie'' playwright
• 'Strange Interlude' writer
• 'Lazarus Laughed' playwright
• "A Moon for the Misbegotten" playwright
• 12-Down playwright