Possible Clues:

• Turned to bone, or slangily drunk
• Huge problems ultimately if one editor is rigidly conventional
• Made rigid and set into a conventional pattern
• Work of side is rigidly set in ways
• Showing signs of immobility? If so, dies horribly
• It's got to be hard
• It's hard for 8 across to have got this
• If so, dies, being changed into bone
• It's hard to be made so skeletal
• Turned into bone - if so, dies