Related Clues:

• Muff an easy one
• Make a boner
• Do wrong
• Imperfect verb?
• Miss a cue, say
• Play around, with 'off'
• Do the wrong thing
• Take a tumble
• Drop an easy one
• Get one's wires crossed
• Delude oneself
• Vacation plan
• Make a mess of things
• Misplay
• Be imperfect