Found locked in bureau near the door (9)
I believe the answer is:
unearthed
'found' is the definition.
(unearthing is a kind of finding)
'locked in bureau near the door' is the wordplay.
'locked in' says the answer is hidden in the clue.
'UNEARTHED' is hidden in the letters of 'bureau near the door'.
(Other definitions for unearthed that I've seen before include "unsafe condition of electrical apparatus" , "Dug up" , "found" , "Discovered something hidden by digging" , "Excavated, brought to light" .)