High country (7)
(Other definitions for uplands that I've seen before include "hilly country" , "hills" , "High region" , "Regions of high ground" .)
'high country' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tibet that I've seen before include "High mountainous area" , "Land of the Dalai Lama" , "region out East" , "Asian location" , "hilly region" .)