Location shown in news item (4)
I believe the answer is:
site
'location' is the definition.
(site is a kind of location)
'in news item' is the wordplay.
'in' indicates the answer is hidden within the clue.
'SITE' is hidden within 'news item'.
'shown' is the link.
(Other definitions for site that I've seen before include "Situation (of a building)" , "Ties into building location" , "Place for building" , "Area set aside for building" , "Building land" .)