Possible Clues:

• Piece of poetry from somewhere in Switzerland, unfinished?
• Poem division (and an anagram of 109 Down)
• "The Divine Comedy" segment
• 'The Divine Comedy' segment
• Roman censor to suppress new division in poem
• Swiss division almost producing poetry
• Piece of choral music in Anglican town
• Epic poem section
• Division of long rhyme has nothing to do with hypocrisy
• Some lines in Noel's play changed originally