Salient feature of pure fiction (3)
I believe the answer is:
lie
'pure fiction' is the definition.
'lie' can be an answer for 'fiction' (fiction can mean a lie or fabrication). I'm unsure of the 'pure' bit.
'salient feature' is the wordplay.
'feature' says the answer is hidden in the clue (I've seen 'featuring' mean this).
'LIE' is hidden in the letters of 'salient'.
'of' is the link.
Can you help me to learn more?
(Other definitions for lie that I've seen before include "buried" , "A white one is considered harmless" , "Fib - be prone" , "Untruth; rest" , "Whopper" .)