Waste product from bureaucracy (4)
I believe the answer is:
urea
'waste product' is the definition.
(I've seen this before)
'from bureaucracy' is the wordplay.
'from' indicates the answer is hidden within the clue.
'UREA' is hidden within 'bureaucracy'.
(Other definitions for urea that I've seen before include "Waste product of mammals" , "Human waste product" , "wee substance?" , "Waste matter" , "organic compound" .)