Martini garnish (5)
I believe the answer is:
olive
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">martini garnish</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 olive that I've seen before include "Type of green" , "Evergreen Mediterranean tree" , "Its branch is a peace emblem" , "shades of green" , "Fruit; Popeye's girlfriend" .)