To turn us in or turn us out? (4)
I believe the answer is:
oust
'turn us out?' is the definition.
'oust' can be an answer for 'turn' (thesaurus). I am unsure of the 'us out?' bit.
'to turn us in' is the wordplay.
'turn' indicates an anagram.
'in' is an insertion indicator.
'to' anagrammed gives 'ot'.
'ot' enclosing 'us' is 'OUST'.
'or' acts as a link.
Can you help me to learn more?
(Other definitions for oust that I've seen before include "kick out" , "Drive out, eject from office" , "responsible for expulsions" , "Depose" , "Turn out" .)