Related Clues:

• A medic taken around hospital for particular purpose
• Old fellows on strike carrying article that's improvised
• Optimum changes to include voting system without any preparation
• Plug Steel, perhaps, extempore?
• Create female apparel that's rough and ready
• Cobbled together dress given to model
• Improvised, most of excuse involving daughter
• ... without preparation leads to accidents: dozens, hundreds of crashes
• Ignore the teleprompter
• Wing it at the lectern
• Mended fences
• A bid to be funny, line thrown in?
• What the Marx Brothers often do in their films
• Unprepared -- and all is oddly British
• Like some hypotheses