Related Clues:

• Provide argument against beginning to run train system in reverse
• Skirts around defence testimony? Say it isn't so!
• Fail to grant, in court
• Refuse in study close to trolley
• Finishes off crossword puzzle on Sunday for contest
• Declare to be false
• Deny dug up potato
• Counter at the bar
• Disprove conclusions in either case, nevertheless
• Go second in a debate
• Make nothing of
• Argue the opposing viewpoint
• Refuse to admit the truth of
• Refuse to acknowledge study on Yeti's origin
• Disprove by putting potato back