Free from overweening pride (3)
I believe the answer is:
rid
'free' is the definition.
(to be free of something is to be rid of it)
'from overweening pride' is the wordplay.
'from' says the answer is hidden in the clue.
'RID' is hidden in the letters of 'overweening pride'.
(Other definitions for rid that I've seen before include "Lose, shake off" , "Clear, remove" , "Free (person of affliction)" , "Free, relieve" , "Free, disencumber" .)