Complete, as you say (5)
I believe the answer is:
utter
This might be a double definition.
'complete' is the first definition.
(I've seen this in other clues)
'you say' is the second definition.
'utter' can be an answer for 'say' (I've seen this before). I'm not sure about the 'you' bit.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for utter that I've seen before include "Speak; completely" , "Speak, articulate" , "Prize" , "talk" , "Give voice" .)