Related Clues:

• Go second in a debate
• Make nothing of
• Show to be false or unjustified
• Depict deceptively
• Entering plunge, every bomb starts to explode
• Umpire takes half a minute to poke holes in it
• Argue the opposing viewpoint
• Deny official EU backing for intervention by leader of Tories
• Disprove by putting potato back
• Contradict in court
• Counter, in a debate
• Disprove underground river's rising
• Participate in a debate
• Expose, as a fraud
• Reply exposing fallacy, using tenets extant ab initio