Possible Clues:

• W. H. -, poet
• 20th-century Anglo-American poet
• Nobility of Lear's wordplay
• ''The Age of Anxiety'' Pulitzer winner
• Poet whose last work was 'Thank You, Fog'
• A university study identified "Mr W H"
• Poet who wrote 'All pity is self-pity'
• "The Shield of Achilles" poet
• 'For the Time Being' poet W.H
• University opens a study for poet