Collection of beehives (6)
I believe the answer is:
apiary
'collection of beehives' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for apiary that I've seen before include "Beehive collection" , "Place where bees are kept for profit" , "Bee colony" , "Place to keep bees" , "Bee house" .)