Tibetan capital (5)
I believe the answer is:
lhasa
'tibetan capital' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for lhasa that I've seen before include "Tibet's "Forbidden City"" , "Group; stripe" , "Tibetan dog breed" , "Tibetan capital" , "Tibetan holy city" .)