Flout (4)
I believe the answer is:
defy
'flout' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for defy that I've seen before include "Go against (authority)" , "Openly resist or refuse to obey" , "Disobey boldly and openly" , "Challenge or resist" , "Openly resist (authority etc)" .)