Possible Clues:

• With bar next to major road, carbon leads to tirade
• Forceful argument
• Verbal attack from European with microphone
• Involving controversy — compile (anag)
• Controversial speech from European male in charge
• Coppers not completely holding me up in controversy
• Controversial European music putting US off
• Controversial European, one interrupting presenter
• Stick with sound equipment for debate
• Diatribe over a president's record, e.g