Open, as a bottle
I believe the answer is:
uncap
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">open as a bottle</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 uncap that I've seen before include "Take the top of the bottle" , "Remove a cover from" , "Take the lid off" , "Remove the lid" , "open" .)