Possible Clues:

• Do some mummifying
• Preserve degree in wood frame
• Preserve sweet air after the speaker rises
• Preserve (a corpse) from decay
• In retrospect, research site divides Frenchmen initially eager to use preservatives
• Preserve business graduate found in tree
• Preserve tree, having brought in business expert
• Preserve a dead body from decay
• Preserve business degree in wooden frame
• Those people vulgarly scoffing stewed lamb and preserve