Romantic flower (4)
I believe the answer is:
rose
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">romantic flower</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 rose that I've seen before include "Went up; plant" , "Garden flower" , "Thorny flowering plant" , "Doctor Who's recent companion" , "vacated bed" .)