Pickling herb (4)
I believe the answer is:
dill
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pickling herb</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 dill that I've seen before include "medicinal plant" , "Herb; rhymes with beak" , "Medicinal herb" , "Herb used in cooking" , "Fool" .)