Refuse to own up to (4)
I believe the answer is:
deny
(Other definitions for deny that I've seen before include "Refuse to admit the truth" , "Controvert" , "Gainsay" , "contest" , "Repudiate, disavow" .)
I believe the answer is:
deny
(Other definitions for deny that I've seen before include "Refuse to admit the truth" , "Controvert" , "Gainsay" , "contest" , "Repudiate, disavow" .)