Unit of parsley (5)
I believe the answer is:
sprig
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">unit of parsley</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sprig that I've seen before include "Small branch or shoot" , "Purloined" , "Small stem with leaves or flowers" , "Tiny branch" , "A tack; a little shoot" .)