Warrior unit yet to be disciplined for profanity (7)
I believe the answer is:
impiety
'disciplined for profanity' is the definition.
'impiety' can be an answer for 'profanity' (thesaurus). I'm not sure about the 'disciplined for' bit.
'warrior unit yet to be' is the wordplay.
'warrior unit' becomes 'impi' (I am not sure about this - if you are sure you should believe this answer much more).
'to be' is an anagram indicator.
'yet' is an anagram of 'ety'.
'impi'+'ety'='IMPIETY'
Can you help me to learn more?
(Other definitions for impiety that I've seen before include "sacrilege" , "Lack of reverence" , "Irreligion" , "godlessness" , "Irreverence, profanity" .)