Some venerate traitor (3)
I believe the answer is:
rat
'traitor' is the definition.
(I've seen this in another clue)
'some venerate' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'RAT' is hidden within 'venerate'.
(Other definitions for rat that I've seen before include "Betrayer" , "Unpleasant character" , "shopper" , "one who deserts the sinking ship?" , "Rodent; informer (colloq.)" .)