Relating to bees (5)
I believe the answer is:
apian
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">relating to bees</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 apian that I've seen before include "Relating to bees" , "social worker described thus?" , "concerning stingy types" , "Concerning bees" , "Concerning 27 across" .)