City of Arizona (6)
I believe the answer is:
tucson
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">city of arizona</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 tucson that I've seen before include "City in 9" , "Arizonan city" , "American city" , "Arizona city that counts badly" , "US city" .)