Fool welcoming Sun journalist is misrepresented (7)
I believe the answer is:
twisted
'is misrepresented' is the definition.
(synonyms)
'fool welcoming sun journalist' is the wordplay.
'fool' becomes 'twit' (both can mean a stupid person).
'welcoming' indicates putting letters inside (in sense of 'inviting in').
'sun' becomes 's'.
'journalist' becomes 'ed' (short for editor).
'twit' going around 's' is 'twist'.
'twist'+'ed'='TWISTED'
(Other definitions for twisted that I've seen before include "Tortuous - deformed" , "Warped, perverted" , "Distorted; cheated" , "Bent, distorted" , "Twirled, wound" .)