Busy place (4)
(Other definitions for beehive that I've seen before include "where workers gather" , "Source of combs" , "Busy insect home" , "Enclosure where honey is first made" , "hair style" .)
'busy place' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for hive that I've seen before include "where people are busy" , "Colony of bees" , "Skin rash from an insect home" , "Place swarming with activity" , "busy scene" .)