Love-in-a-mist genus (7)
I believe the answer is:
nigella
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">love-in-a-mist genus</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 nigella that I've seen before include "girl" , "TV personality" , "Flower and tv cook" , "Woman" , "Flower found in legal" .)