Related Clues:

• Covert
• Blocked off
• Go out of business
• -
• Done with a wink
• Not aboveboard
• Word with in or up or down
• Slam, maybe
• Untrustworthy
• Withdrawn
• Sealed
• Door position
• Machiavellian
• Unassertive
• Kubrick's "Eyes Wide ___"