Related Clues:

• Pry, investigate
• Be a detective
• Cheat bridge partners, each with king
• Poke around and remove dirt from piston rod
• Move like a cat burglar
• Keyhole user, perhaps
• Move on tiptoe
• __ preview (early film showing)
• Telltale; furtive person
• Sort not to be trusted
• Quarterback ___
• Move very quietly
• Person prone to prying
• Overinterested one
• Wiretap a phone conversation, say