Polish characters taken in by The Wise Men deceived (5)
I believe the answer is:
emend
'polish characters' is the definition.
'emend' can be an answer for 'polish' (I've seen this in another clue). I'm not certain of the 'characters' bit.
'taken in by the wise men deceived' is the wordplay.
'taken in by' indicates a hidden word.
'EMEND' is hidden in the letters of 'wise men deceived'.
Can you help me to learn more?
(Other definitions for emend that I've seen before include "Alter to improve (text)" , "Make improvements or corrections" , "Correct, revise (text)" , "Alter something written to correct errors" , "change" .)