Related Clues:

• Enclosures
• Missile shelters
• Signing needs
• Zoo units
• Kennel features
• Encloses
• Nerd-pack contents
• Fodder storers
• Confident solvers' supply
• Launch sites
• Parker and Cross, for two
• They're at all the big signing ceremonies
• They may be pocketed or chained
• Sharpies, e.g.
• They used to come from wells