Shop selling medicines (7)
I believe the answer is:
chemist
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">shop selling medicines</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 chemist that I've seen before include "Pharmacist, apothecary" , "Drug seller" , "Faraday, for example" , "Employee in pharmacy" , "man of science" .)