Reject incentive point (5)
I believe the answer is:
spurn
'reject' is the definition.
(I've seen this before)
'incentive point' is the wordplay.
'incentive' becomes 'spur' (I've seen this before).
'point' becomes 'n' (N is an example**).
'spur'+'n'='SPURN'
(Other definitions for spurn that I've seen before include "Contemptuously dismiss" , "discard" , "Treat with contempt" , "Repudiate" , "Scorn" .)