Drifting around division (4)
I believe the answer is:
rift
'division' is the definition.
(I've seen this in another clue)
'drifting around' is the wordplay.
'around' indicates a hidden word.
'RIFT' can be found hidden inside 'drifting'.
(Other definitions for rift that I've seen before include "cleavage" , "opening" , "gap" , "Breach or quarrel" , "Serious falling out" .)