Area of south London (8,3,6)
I believe the answer is:
elephant and castle
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">area of south london</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 elephant and castle that I've seen before include "Area of south London" , "London location" , "London tube station" .)