Related Clues:

• A bad end to political party make up
• Actor's instruction to play 'As You Like It'?
• Speak extempore
• Unplanned statement on campaign to free up commercial sector?
• With guitar's backing, I very loudly improvise on a theme
• Musical phrase played repeatedly very loudly after religious instruction
• Improvisation from a politician travelling across Germany
• Plug Steel, perhaps, extempore?
• Improvised, most of excuse involving daughter
• Ignore the teleprompter
• Wing it at the lectern
• Jazz solo
• A bid to be funny, line thrown in?
• What the Marx Brothers often do in their films
• Unprepared -- and all is oddly British