Related Clues:

• Muddy abodes
• They're cracked by crooks
• Storage units of a sort
• Bank vaults, e.g
• In-the-wall security devices
• Many dorm rooms
• Piggery enclosures
• Holders of valuables
• Bank boxes
• ''Combination'' items
• Spots for valuables
• Hog's homes
• Hotel room fixtures
• Plural of 38-Across
• Places to hold valuables