Record kept by Crusoe, divided up (5)
I believe the answer is:
video
'record' is the definition.
(I've seen this before)
'kept by crusoe divided up' is the wordplay.
'kept by' indicates the answer is hidden within the clue.
'up' says the letters should be written backwards (in down clue: letters go upwards).
'oediv' can be found hidden inside 'crusoe divided'.
'oediv' back-to-front is 'VIDEO'.
(Other definitions for video that I've seen before include "Recorded visual image" , "TV/film cassette" , "Record footage" , "TV cassette" , "Visible part of a recording" .)