Said to be an absolute boss in journalism (7)
I believe the answer is:
uttered
'said' is the definition.
(I've seen this in another clue)
'absolute boss in journalism' is the wordplay.
I cannot quite see how this works, but
'absolute' could be 'utter' (synonyms) and 'utter' is found within the answer.
'boss' could be 'ed' (short for editor - newspaper boss) and 'ed' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
'to be an' is the link.
Can you help me to learn more?
(Other definitions for uttered that I've seen before include "In law, put forged money into circulation" , "Said (something)" , "Spoke and put into circulation" , "Spoken" , "Pronounced" .)