Possible Clues:

• Con, half the time
• Bambi to hold club, one contends
• School team member who argues a lot
• One discussing topic
• Berated crazy speaker
• Speaker in parliament perhaps berated if stumbling
• Beast holding club is someone with a point to make
• Beast kept outside the club - an argumentative type?
• School-team arguer
• The German harbouring anger may be a disputatious type