Related Clues:

• Last word of Kubrick's last title
• Word in a Kubrick title
• Boarded up
• Close securely
• Open partner
• Word with in, out or up
• Closed tight
• Not open
• Opposite of 18-Across
• Isolated, with "off"
• Seal tightly
• Closed tightly
• Slammed, maybe
• Word with ''in,'' ''up'' or ''down''
• Not even ajar