Nevadan city (3,5)
I believe the answer is:
las vegas
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">nevadan city</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for las vegas that I've seen before include "entertainment centre" , "US gambling centre" , "American premier gambling city" , "US casino city" , "city surrounded by desert" .)