Related Clues:

• Plain aunt struggling to embrace doctor
• A way teachers recalled a cold, treeless zone
• About 10% of Russia
• Plain aunt disturbed when doctor poked inside
• Tough person denied start back in frozen land
• Biome covering much of northern Siberia
• Container for ale, mostly dull and plain
• It’s plain aunt is angry about medico
• Unrestricted hard nuts head up Arctic region
• 61 Across' colder cousin
• Permafrost locale
• Large cask on brewer's cart, last of many to be ditched in wasteland
• Largely treeless Arctic region
• Bones in fish that's plain
• Plain ewer removed from under water