Buddhist holy city (5)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">buddhist holy city</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lhasa that I've seen before include "The Forbidden City in Tibet" , "Group; stripe" , "Tibetan holy city" , "Luxembourg's a" , "Asian capital" .)