Rising place of learning has model there already (2,4)
I believe the answer is:
in situ
'there already' is the definition.
I can't tell whether this defines the answer.
'rising place of learning has model' is the wordplay.
'rising' says the letters should be written backwards (in a down clue, letters go up).
'place of learning' becomes 'uni' (university).
'has' is an insertion indicator.
'model' becomes 'sit' (e.g. for a painting).
'uni' backwards is 'inu'.
'inu' placed around 'sit' is 'IN-SITU'.
Can you help me to learn more?
(Other definitions for in situ that I've seen before include "American lift" , "In the natural position (Latin)" , "Correctly placed" , "Occupying the right position" , "At the appropriate location" .)