Prudence gets uncivil (4)
I believe the answer is:
rude
'uncivil' is the definition.
(synonyms)
'prudence gets' is the wordplay.
'gets' indicates a hidden word.
'RUDE' is hidden in the letters of 'prudence'.
(Other definitions for rude that I've seen before include "Impolite - obscene" , "Robust - roughly made" , "discourtesy" , "Uncouth" , "Impertinent" .)