Possible Clues:

• Turns up father gets some freedom to speak on the hoof
• Improvise for sage to leave bag ladies
• It needs no practice to get so bald about one
• Woman returning book for husband is not prepared
• A Liberal Democrat out of order, not prepared for speech
• Not prepared to busk
• Failing to start ribald dance without rehearsal
• Not practiced
• Not scripted
• Speak impromptu, improvise