Newspaper chief called it ordinary, to some extent (6)
I believe the answer is:
editor
'newspaper chief' is the definition.
(I've seen this before)
'called it ordinary to some extent' is the wordplay.
'to some extent' indicates the answer is hidden within the clue.
'EDITOR' can be found hidden inside 'called it ordinary'.
(Other definitions for editor that I've seen before include "Journalist - rioted (anag)" , "One expected to make final" , "one in charge of 10 [PRESS GANG] ?" , "Person in charge of a publication" , "One who determines the final content of a text" .)