Bouquet garni component (4)
I believe the answer is:
herb
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bouquet garni component</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 herb that I've seen before include "Eg, sage" , "plant with useful properties" , "Mint possibly" , "bay perhaps" , "Plant used in medicine or cookery" .)