Not excluded from some koinonia (2,2)
I believe the answer is:
in on
'not excluded from' is the definition.
(I've seen this in another clue)
'some koinonia' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'IN ON' is hidden in the letters of 'koinonia'.
(Other definitions for in on that I've seen before include "Aware of secret" , "Sharing with" , "Participating in - knowing about" , "Privy to" , "Wise to" .)