Lawyer's document (5)
I believe the answer is:
brief
'lawyer's document' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for brief that I've seen before include "Ephemeral" , "Short - work for counsel" , "Barrister (sl.)" , "Provide someone with the facts of the case" , "description of Macbeth's candle" .)