Immaculate level not there, by the sound of it? (8)
I believe the answer is:
flawless
'immaculate' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for flawless that I've seen before include "Unblemished" , "Pristine" , "Without blemish or imperfection" , "Without blemish or fault" , "Impeccable" .)