Related Clues:

• Erects building behind someone's back
• Moles may trade them
• They're not to be disclosed to others
• Arcane splinter group holding on
• Covert cult embracing religious class
• Something a gossip can't keep
• Clandestine, undercover
• Clandestine group admits backing church writing
• Espionage objective
• Sheena Easton "Best Kept ___"
• Like some office Santas
• Like some handshakes and formulas
• Something you tell someone to keep private
• Use Crete as setting for mystery
• One of the agents associated with all sides today