
1) British Antarctic Territory 2) Cold body of water 3) Sea in the Southern Ocean
Found on
https://www.crosswordclues.com/clue/weddell-sea

The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. The easternmost point is Cape Norvegia at Princess Martha Coast, Queen Maud Land. To the east of Cape Norvegia is the King Haakon VII Sea. Much of the southern par...
Found on
http://en.wikipedia.org/wiki/Weddell_Sea

deep embayment of the Antarctic coastline that forms the southernmost tip of the Atlantic Ocean. Centring at about 73° S, 45° W, the Weddell Sea is ... [6 related articles]
Found on
http://www.britannica.com/eb/a-z/w/19
noun an arm of the south Atlantic in Antarctica east of the Antarctic Peninsula
Found on
https://www.encyclo.co.uk/local/20974

Arm of the Southern Atlantic Ocean that cuts into the Antarctic continent southeast of Cape Horn; area 8,000,000 sq km/3,088,800 sq mi. Much of it is covered with thick pack ice for most of the year
Found on
https://www.encyclo.co.uk/local/21221
No exact match found.