Musical set in Buenos Aires (5)
I believe the answer is:
evita
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">musical set in buenos aires</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 evita that I've seen before include "Famous musical" , "Peron musical" , "Andrew Lloyd Webber musical set in Argentina" , "Nineteen Dn musical" , "Juan Peron's wife" .)