Bee-related (5)
I believe the answer is:
apian
'bee-related' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for apian that I've seen before include "concerning stingy types" , "social worker described thus?" , "Concerning 27 across" , "Relating to bees" , "Concerning bees" .)