To no __ (unsuccessful) (5)
I believe the answer is:
avail
(Other definitions for avail that I've seen before include "Be of help or advantage" , "See 3" , "Be of value to" , "Medal (informal)" , "Help, benefit" .)
I believe the answer is:
avail
(Other definitions for avail that I've seen before include "Be of help or advantage" , "See 3" , "Be of value to" , "Medal (informal)" , "Help, benefit" .)