Embarrassed a fake journalist (7)
I believe the answer is:
ashamed
'embarrassed' is the definition.
(similar in meaning)
'a fake journalist' is the wordplay.
'fake' becomes 'sham' (sham can mean fake or pretend).
'journalist' becomes 'ed' (short for editor).
'a'+'sham'+'ed'='ASHAMED'
(Other definitions for ashamed that I've seen before include "Feeling remorse and guilt" , "Discomfited" , "Afflicted with remorse, feeling sense of wrongdoing" , "He's Adam (anag.)" , "Feeling bad, having done something wrong" .)