One kiss and journalist is sacked (4)
I believe the answer is:
axed
'is sacked' is the definition.
(I've seen this in another clue)
'one kiss and journalist' is the wordplay.
'one' becomes 'a' (a thing is one thing).
'kiss' becomes 'x' (X can represent a kiss).
'and' is a charade indicator (letters next to each other).
'journalist' becomes 'ed' (short for editor).
'a'+'x'+'ed'='AXED'
(Other definitions for axed that I've seen before include "Fired - cut down" , "Chopped or terminated" , "Sacked with a hatchet? (4)" , "Dismissed, given the chop" , "Cancelled or dismissed suddenly" .)