Complete and total (5)
'complete and total' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for utter that I've seen before include "Express audibly" , "issue" , "Total < state" , "Speak or say" , "Speak; complete" .)
(Other definitions for outright that I've seen before include "Completely - undisputed" , "Completely and thoroughly" , "Total" , "Directly; without reservation" , "without qualifications" .)