Fitness centre (9)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">fitness centre</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for gym that I've seen before include "Fitness centre" , "Training room" , "Lesson" , "Area for physical exercise in short" , "Exercise (hall)" .)
(Other definitions for gymnasium that I've seen before include "Saying Mum (anag.)" , "Work-out room" , "Building dedicated to physical exercise" , "Hall for PE" , "room for horse jumping" .)