Related Clues:

• Made secure
• Tightly closed
• Fastened tightly
• Latched, say
• Securely latched
• Turn (off)
• Like an envelope that's ready to be mailed
• Turned (off)
• Seal off
• Stopped operating, with "down"
• Open-and-__ case
• Closed securely
• Endless writer's block
• Philosopher with key used one
• Huts should be made secure