Soothing plant (4)
I believe the answer is:
aloe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">soothing plant</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 aloe that I've seen before include "Succulent plant (may be bitter!)" , "Fleshy-leaved plant" , "Succulent plant (4) 5532" , "has a bitter taste" , "Bitter drug from a leaf juice" .)