Overdue journalist is behind broken table (7)
I believe the answer is:
belated
'overdue' is the definition.
(belated means overdue or behind schedule)
'journalist is behind broken table' is the wordplay.
'journalist' becomes 'ed' (short for editor).
'is behind' is a charade indicator (letters next to each other).
'broken' indicates an anagram.
'table' is an anagram of 'belat'.
'ed' put after 'belat' is 'BELATED'.
(Other definitions for belated that I've seen before include "Coming after time" , "Bleated, being too late" , "Behind time" , "Tardy" , "Out of date" .)