Related Clues:

• Having no effect
• Tear up, so to speak
• Invalidated
• Outta here
• Fell from grace
• Not oneself today
• Word on a check
• Invalidate, as a check
• 'And we're ___ like a prom dress!'
• Null and ___
• Light setting
• Null and --
• Taking a vacation day
• Anti-bug brand
• -- the cuff