Possible Clues:

• Owns (up)
• Admits (with "up")
• Admits guilt, with 'up'
• Owns (up to)
• Handles deftly
• Comes clean, with "up"
• Spills it, with 'up'
• With 'up,' concedes culpability
• Admits, with "up"
• Comes clean, with 'up'