Surprisingly accurately quoted! (3)
I believe the answer is:
sic
'surprisingly' is the definition.
Both the answer and definition are adverbs. Perhaps you can see an association between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for sic that I've seen before include "As it stands, in printing" , "Quoted exactly as in the original; so" , "Word to call attention to a quoted mistake" , "Printing term to denote accuracy though it appears otherwise" , "Thus among musicians" .)