Related Clues:

• Closed tightly
• Slammed, maybe
• Word with ''in,'' ''up'' or ''down''
• Z's
• Not even ajar
• Word with ''up'' or ''down''
• Fastened
• Nail down
• Make it close?
• Securely closed
• Fasten down
• See 2 Down
• Not at risk
• Lock up
• Open-and-___ case