Puzzle concerning rising press employee (5)
I believe the answer is:
rebus
'puzzle' is the definition.
(I've seen this before)
'concerning rising press employee' is the wordplay.
'concerning' becomes 're'.
'rising' shows that the letters should be reversed in order (going up in a down clue).
'press employee' becomes 'sub' (subeditor).
'sub' written backwards gives 'bus'.
're'+'bus'='REBUS'
(Other definitions for rebus that I've seen before include "Visual pun" , "Picture and word puzzle" , "that's puzzling" , "Problem" , "Enigmatic representation" .)