PE halls (8)
I believe the answer is:
gymnasia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pe halls</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 gymnasia that I've seen before include "pumping stations?" , "Places for exercise" , "PE halls" , "places to make physical losses?" , "Exercise halls" .)