Related Clues:

• Use a mattock
• With 52-Across, what treasure hunters do
• Lay waste
• Do some research
• Sarcastic comment
• Be into
• Unkind remark
• Destruction
• "Understand?"
• "Comprende?"
• Render useless
• Search deeply
• Excavation
• Devastate
• Pompeii, e.g., today