Post mortem bio (4)
I believe the answer is:
obit
'post mortem bio' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for obit that I've seen before include "Memorial biography (abbr)" , "Commemoration of a death (abbr)" , "Death notice (colloq.)" , "The last word" , "Notice of one's passing" .)