Possible Clues:

• Speaker of the quote
• "One-l lama" poet
• Light verse poet
• To whom the rhinoceros was 'prepoceros'
• Humorist who wrote 'Candy / Is dandy / But liquor / Is quicker'
• Coiner of ''sellyfish'' and ''nectacled''
• 'Candy is dandy' poet
• American poet, author of 'Candy is dandy'
• Humorist's hand's gone fluttering
• Will's wife would go back at peace to poet