Difficult question about bribe overturned (5)
I believe the answer is:
poser
'difficult question' is the definition.
(I've seen this before)
'about bribe overturned' is the wordplay.
'about' becomes 're' (regarding).
'bribe' becomes 'sop' (sop can mean a concession or bribe).
'overturned' is a reversal indicator.
're'+'sop'='resop'
'resop' back-to-front is 'POSER'.
(Other definitions for poser that I've seen before include "Puzzle using ropes" , "Tricky clue" , "This person's affected" , "Artist's model" , "Ropes (anag.)" .)