Spa city (4)
I believe the answer is:
bath
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">spa city</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 bath that I've seen before include "Stopper for hole (don't let 8 through it!)" , "Large tub" , "It may be run" , "Georgian city" , "city that may or may not chime with 27 [HEARTH]" .)