Possible Clues:

• Mother-of-pearl from shellfish
• Pole (a measure of land) produced by molluscs
• Was Pearl the daughter of what can turn up about this?
• Constituent of inlay furniture and old drum, say
• Mother-of-pearl container rejected by Egyptian god
• Mother-of-pearl necklace initially given unusual care
• This can turn about for mother-of-pearl
• It takes a crane to get it out of the oyster
• Mollusk interior
• The northern ground for mother-of-pearl