Toward Antarctica (5)
I believe the answer is:
south
'toward antarctica' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for south that I've seen before include "Compass point" , "Down on a map" , "Cardinal point" , "Antarctica" , "1949 musical by Rodgers and Hammerstein, made into a film in 1958" .)