Related Clues:

• Not in danger
• Affording protection
• Sometimes-cracked container
• Snow missile
• Deb's event
• Container that may be cracked
• Heist flick factor
• Target for 39-Across
• Lockbox
• Tried-and-true
• It may be masked
• Well protected
• Box behind a painting, maybe
• Gala affair
• On base untagged