Undisturbed (2,4)
I believe the answer is:
in situ
'undisturbed' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for in situ that I've seen before include "Correctly placed" , "Occupying the original or appropriate position" , "Latin meaning 'on site'" , "at original location" , "Appropriately positioned" .)