Bump into nasty Yankee apparently (9)
I believe the answer is:
evidently
'apparently' is the definition.
(thesaurus)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for evidently that I've seen before include "it would seem" , "In an obvious manner" , "Apparently or obviously" , "Without question" , "Obviously, clearly" .)