Possible Clues:

• The repetition of similar-sounding words or syllables
• Idiot at one point pens article, generating correspondence
• Dimwit previously stole 'A New Feature of Poetry'
• Fool previously grasping an element of poetry
• Poetic repetition of sounds, as used in Poe’s “Once upon a midnight dreary, while I pondered, weak and weary”
• Season can reform, as spring sprung demonstrates?