More than one dictator hinders journalist making return (7)
I believe the answer is:
despots
'more than one dictator' is the definition.
(despot is a kind of dictator)
'hinders journalist making return' is the wordplay.
'hinders' becomes 'stops'.
'journalist' becomes 'ed' (short for editor).
'making return' says the letters should be written backwards.
'stops'+'ed'='stopsed'
'stopsed' reversed gives 'DESPOTS'.
(Other definitions for despots that I've seen before include "Autocrats" , "Tyrants" .)