Capital city of Finland (8)
I believe the answer is:
helsinki
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">capital city of finland</span>' is the definition.<br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for helsinki that I've seen before include "Foreign city" , "Sikh line (anag)" , "1952 Olympic Games venue" , "North European capital" , "Nordic capital" .)