Plant such as wattle (6)
I believe the answer is:
acacia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">plant such as wattle</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for acacia that I've seen before include "Tree or shrub with yellow or white flowers" , "Spiny shrub with clusters of yellow or white flowers" , "Shrub of warm climates" , "Flowering tree or shrub" , "Spiny tree or shrub" .)