Fanny
I believe the answer is:
seat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fanny</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that fanny can be written as seat)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for seat that I've seen before include "Chair, bench, saddle, etc" , "MP's constituency" , "Position (in parliament)" , "Box ---, position of advantage" , "pew?" .)