Newspaper chief travelled up to cover it (6)
I believe the answer is:
editor
'newspaper chief' is the definition.
(I've seen this before)
'travelled up to cover it' is the wordplay.
'travelled' becomes 'rode' (I've seen this in other clues).
'up' says the letters should be written in reverse (in down clue: letters go upwards).
'to cover' means one lot of letters goes inside another.
'rode' reversed gives 'edor'.
'edor' placed around 'it' is 'EDITOR'.
(Other definitions for editor that I've seen before include "One responsible for leader" , "Person in charge of a publication" , "Director of publication" , "Person responsible for publication;" , "Newspaper boss" .)