Capital of Pakistan (9)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">capital of pakistan</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for islamabad that I've seen before include "Asian city" , "Pakistan's capital" , "city of Pakistan?" , "Capital of Pakistan" , "capital city" .)