Possible Clues:

• Spot for knickknacks
• Flat surface for holding objects
• Mantel, e.g.
• Bank books might be here
• Whereon 2 down is not!
• Wall fitting for books, etc
• Don't talk in front of a fairy's mantelpiece
• It's sticking out that one is trying to keep the sprite quiet
• Continental __
• Flesh wound -- one will probably put something on it