Starts anchoring New Orleans news shortly (4)
I believe the answer is:
anon
'shortly' is the definition.
(synonyms)
'starts anchoring new orleans news' is the wordplay.
'starts' says to take the initial letters.
The first letters of 'anchoring new orleans news' is 'ANON'.
(Other definitions for anon that I've seen before include "Presently - or unknown" , "Of unknown identity, in short" , "Some time soon" , "Soon or presently" , "Soon; unnamed" .)