Salient feature of perjury (3)
I believe the answer is:
lie
'perjury' is the definition.
(thesaurus)
'salient feature' is the wordplay.
'feature' indicates the answer is hidden within the clue (I've seen 'featuring' mean this).
'LIE' can be found hidden inside 'salient'.
'of' acts as a link.
(Other definitions for lie that I've seen before include "Equivocate" , "A white one is considered harmless" , "Mistruth" , "Fib - be prone" , "buried" .)