Related Clues:

• Exactly what's needed in rodent's hole
• Vacant space
• Space; break
• Internal void
• Memory problem
• Disparity prospective students may enjoy this year?
• Infamous feature of the Nixon White House tapes
• Hole in tooth?
• Opening, breach
• A narrow opening
• The thing nipped by rodent, creating a hole
• Stare endlessly into space
• Opening shop?
• Disparity in blood group grasped by doctor
• Doctor needs to make room for a break