The capital of Latvia (4)
I believe the answer is:
riga
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the capital of latvia</span>' is the definition.<br/ ><span class="explanation-format__explanation">('Riga' can be a synonym of 'capital of latvia')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for riga that I've seen before include "Latvian port" , "Baltic capital city" , "port in Latvia" , "European capital" , "Fix a rig up here for the Latvians" .)