Jar toppers (4)
I believe the answer is:
lids
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">jar toppers</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lids that I've seen before include "Covers for opening and closing" , "Movable tops or covers" , "Eye covers" .)