Some bigwig no reporters disregard (6)
I believe the answer is:
ignore
'disregard' is the definition.
(synonyms)
'some bigwig no reporters' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'IGNORE' can be found hidden inside 'bigwig no reporters'.
(Other definitions for ignore that I've seen before include "Send to Coventry" , "Region in which to snub" , "Deliberately disregard" , "Brush off" , "Forget" .)