Head of publication (6)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
editor
'head of publication' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for editor that I've seen before include "Person in charge of a publication" , "Newspaper executive" , "Reviewer of text" , "Director of 3 down" , "Newspaper boss" .)