Possible Clues:

• Con, half the time
• Bambi to hold club, one contends
• School team member who argues a lot
• One discussing topic
• Person who may be the first affirmative speaker
• Pro, half the time
• One may argue that the deer is about to fly by night
• Beast holding club is someone with a point to make
• Beast kept outside the club - an argumentative type?
• School-team arguer