Capital of Wales (7)
I believe the answer is:
cardiff
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">capital of wales</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 cardiff that I've seen before include "Welsh city" , "Welsh capital" , "Place in Wales" , "City on the Taff" , "European capital, birthplace of Roald Dahl" .)