Journalist cycled over carrying it (6)
I believe the answer is:
editor
'journalist' is the definition.
(thesaurus)
'cycled over carrying it' is the wordplay.
'cycled' becomes 'rode' (I've seen this in other clues).
'over' shows that the letters should be reversed in order.
'carrying' means one lot of letters goes inside another.
'rode' backwards is 'edor'.
'edor' placed around 'it' is 'EDITOR'.
(Other definitions for editor that I've seen before include "Paper head" , "Redactor" , "Chief journalist" , "Triode (anag.)" , "Press fellow" .)