Repeatedly bear ridicule (4-4)
I believe the answer is:
pooh-pooh
'ridicule' is the definition.
(I've seen this before)
'repeatedly bear' is the wordplay.
'repeatedly' shows that letters should be duplicated.
'bear' becomes 'pooh' (Winnie the Pooh).
'pooh' doubled is 'POOH-POOH'.
(Other definitions for pooh-pooh that I've seen before include "Dismiss with contempt" , "Make dismissive sounds, ridicule repetitively?" , "Dismiss (something) rather contemptuously" , "Disparage - put through hoops" , "Dismiss as foolish" .)