Drinker's remark hasn't succeeded in a perfect way (2,1,1)
I believe the answer is:
to a t
'in a perfect way' is the definition.
Both the definition and answer are adverbs. Perhaps they are linked in a way I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for to a t that I've seen before include "In every detail" , "perfectly well" , "Exactly right" .)