Small medicine bottle (4)
I believe the answer is:
vial
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small medicine bottle</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 vial that I've seen before include "Small glass container" , "Ampoule" , "Small container for liquid medicine" , "Not much bottle" , "Small medicine bottle" .)