Possible Clues:

• One would never agree to ride around anything so very loud
• Hold an opposing opinion
• What one might beg to do
• Contrast - disagree
• Disagree or vay
• If Fred is around, one will 2 down
• 'Disagree, dissent (6)'
• Be at variance (with)
• Disagree with picking up communist (very loud one, in hiding)
• Take issue from seed if fertilised