Sweet william (4)
I believe the answer is:
pink
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sweet william</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 pink that I've seen before include "one's found in bed" , "Colour; garden plant" , "Alcoholic hallucinations" , "Knock (of engine) - garden flower" , "Cut wavy edge on, plant" .)