Cover article plugs something newsworthy (6)
I believe the answer is:
canopy
'cover' is the definition.
(canopying is a kind of covering)
'article plugs something newsworthy' is the wordplay.
'article' becomes 'an' (indefinite article).
'plugs' indicates putting letters inside (plug can mean to fill a gap).
'something newsworthy' becomes 'copy' (copy can mean text for a newspaper).
'an' inserted into 'copy' is 'CANOPY'.
(Other definitions for canopy that I've seen before include "Uppermost branches of forest trees" , "Hangong cover as over a bed" , "Overhanging cover" , "Ceremonial covering" , "Cockpit cover" .)