Possible Clues:

• One works from notes on the difficult question at last
• Councillor secures order to ask one to make notes
• German - like Berlin for example
• Shortly arrive at puzzle, he makes notes
• Bliss, possibly, for one who scores runs
• Waste processor having no time for the likes of 15
• One makes notes for a living
• Mozart or Mendellsohn
• A noted writer
• Beethoven or Brahms, for instance