Possible Clues:

• ,19 across, 1 Played organ and cello movement briskly and livelily
• Pretty quick
• A learner queried role taking in good lively piece
• Being entirely self-centred overcomes resistance quickly
• Of music, fast and lively
• Brisk, to Britten
• Notedly lively
• A Liberal supporter picked up gold quickly
• Nothing but a mixture of gore in a lively way
• A deviation from largo, extremely lentamente?