Possible Clues:

• Dig up a dead body
• Exhume
• Dig up
• Part of hoard is interesting to dig up
• Sit diner in mess: grub up!
• Bring up girl on the hard stuff
• Dig up, say a body
• Tried ineffectively to conceal a misdeed you dig up
• Reverse some undertaking?
• Bring to light rogue is in the red? Not he