Muscat citizen (5)
I believe the answer is:
omani
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">muscat citizen</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 omani that I've seen before include "Native of one Arabian sultanate" , "Asian" , "Middle Easterner" , "coming from the Middle East" , "Gulf native" .)