Flower petals collectively (7)
I believe the answer is:
corolla
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">flower petals collectively</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 corolla that I've seen before include "Flower's petals collectively" , "part of plant" , "Internal whorl of a flower" , "Whorl of flower petals" , "bit of a bloomer" .)