Cairo's country (5)
I believe the answer is:
egypt
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cairo's country</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 egypt that I've seen before include "Where M. Antony died" , "North East African republic" , "Country ruled by Cleopatra" , "NE African country" , "North African state" .)