Austrian city (6)
I believe the answer is:
vienna
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">austrian city</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for vienna that I've seen before include "Strauss 'Tales from the . . . . . . Woods'" , "Austrian city of the waltz" , "Capital on the Danube Canal" , "European city for New Year's Day concert" , "On the Danube, it was home to many great composers" .)