Coalition working away to establish learning establishment (3)
I believe the answer is:
uni
'learning establishment' is the definition.
'uni' can be an answer for 'establishment' (I've seen this before). I am not sure about the 'learning' bit.
'coalition working away' is the wordplay.
'coalition' becomes 'union' (I've seen this in another clue).
'working' becomes 'on' (e.g. a machine is working or on).
'away' indicates named letters should be taken away.
'union' with 'on' taken out is 'UNI'.
'to establish' acts as a link.
Can you help me to learn more?
(Other definitions for uni that I've seen before include "Third-level college, in short" , "academic establishment" , "educational establishment" , "Place of higher education (abbr)" , "Where you can study" .)