Disconcerted Punch journalist supporting article (7)
I believe the answer is:
'disconcerted' is the definition.
(abashing is a kind of disconcerting)
'punch journalist supporting article' is the wordplay.
'punch' becomes 'bash'.
'journalist' becomes 'ed' (short for editor).
'supporting' means one lot of letters go next to another (in a down clue, some letters go below others).
'article' becomes 'a' (the indefinite article in English).
'bashed' put after 'a' is 'ABASHED'.
(Other definitions for abashed that I've seen before include "Caused to feel uneasy and self-conscious" , "turned red?" , "Disconcerted or ashamed" , "Stricken with shame" , "Shamefaced" .)