Related Clues:

• Create a snafu
• Behave humanly
• Go off course
• Do this to prove you're human
• Lapse
• Be human
• Blow one's lines, e.g.
• Foul up
• Sin
• Need correcting
• Elicit a 26-Down
• Go astray
• 'To ___ is human ...'
• Make a goof
• Be human, perhaps