Disciple turned to welcome corrupt neophytes (10)

I believe the answer is:
novitiates
'neophytes' is the definition.
Although both the answer and definition are plural nouns, I cannot see how one could define the other.
'disciple turned to welcome corrupt' is the wordplay.
'disciple' becomes 'son' (son can figuratively mean a follower or disciple).
'turned' shows that the letters should be reversed in order.
'to welcome' means one lot of letters goes inside another (in sense of 'inviting in').
'corrupt' becomes 'vitiate' (synonyms).
'son' backwards is 'nos'.
'nos' placed around 'vitiate' is 'NOVITIATES'.
Can you help me to learn more?
(Another definition for novitiates that I've seen is " probation periods".)
