The former capital of West Germany (4)
I believe the answer is:
bonn
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">the former capital of west germany</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for bonn that I've seen before include "First capital of the German Federal Republic" , "Former West German capital" , "W German capital 1949-90" , "Beethoven's birthplace, old capital" , "German city" .)