Possible Clues:

• Extravagantly theatrical
• As a poet I get the car, or an invoice for it
• Like a diva's performance
• Long time in the optic for music
• Like music composed for a libretto
• Like many La Scala productions
• Love picture about English renegade - typical of stagy work?
• Like something of Wagner's work, uneven - a run cancelled
• Viewer takes in cycle, like Wagner's Ring
• Of classical music drama