... excavate in chateau near there (7)
I believe the answer is:
unearth
'excavate' is the definition.
(I've seen this before)
'in chateau near there' is the wordplay.
'in' says the answer is hidden in the clue.
'UNEARTH' is hidden in the letters of 'chateau near there'.
(Other definitions for unearth that I've seen before include "Dig up - uncover" , "reveal" , "Dig up or find for haunter" , "Disconnect terminal" , "Excavate, dig up" .)