Related Clues:

• Go astray
• 'To ___ is human ...'
• Diamond flaw
• Be dead wrong
• Make a goof
• Fielder's flub
• It's marked with an X
• Be human, perhaps
• Kind of message
• Be human, so they say
• Go awry
• Muff an easy one
• Make a boner
• Do wrong
• Imperfect verb?