Seated in the original place, in which the back cut is nicely made (2,4)
I believe the answer is:
in situ
'in the original place in which the back cut is nicely made' is the definition.
'in situ' can be an answer for 'in the original place' (I've seen this before). I am not sure about the rest of the definition.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for in situ that I've seen before include "at original location" , "Appropriately positioned" , "As originally located" , "At the appropriate location" , "Without being moved" .)