Bogus journalist discredited (6)
I believe the answer is:
shamed
'discredited' is the definition.
(I know that discredited can be written as shamed)
'bogus journalist' is the wordplay.
'bogus' becomes 'sham' (both can mean fake).
'journalist' becomes 'ed' (short for editor).
'sham'+'ed'='SHAMED'
(Other definitions for shamed that I've seen before include "Embarrassed" , "Made to feel guilty and inferior" , "Dishonoured, disgraced" , "in disgrace?" , "He's mad (anag)" .)