At fruition (4)
I believe the answer is:
ripe
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">at fruition</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 ripe that I've seen before include "daring" , "Fully developed, ready to be eaten" , "At fruition" , "Mellow" , "Ready for picking" .)