Possible Clues:

• German poet who wrote 'Don't send a poet to London'
• ''Book of Songs'' writer Heinrich
• "Die Lorelei " poet
• ''Die Lorelei'' poet Heinrich
• German poet - he's at home with English
• Heinrich -, nineteenth century German poet
• Die Lorelei poet
• Poet who wrote 'Don't send a poet to London'
• Poet whose last words were 'Of course [God] will forgive me; that's his business'
• "Book of Songs" author, Heinrich