Absolute, utter (3-3-3)
I believe the answer is:
out-and-out
I believe this clue is a double definition.
'absolute' is the first definition.
(I know that absolute can be written as out-and-out)
'utter' is the second definition.
(I've seen this before)
(Other definitions for out-and-out that I've seen before include "Thorough and complete - emphatically not indoors" , "Utter, absolute" , "Utter and thorough - never in" , "Thorough, surpassing" , "Definitely" .)