Related Clues:

• National opener
• Go underground
• Tepee wall
• Surround closely
• Prefix with change or act
• Be hard to spot
• Firmly fix
• Palm, say
• Pt. of ICBM
• Encrypt?
• Stick in cement, e.g.
• Plant firmly
• Part of the title of a child's game
• Bury in a pyramid, e.g.
• Participate in a certain child's game