Happen to provide everybody with notes (6)
I believe the answer is:
befall
'happen to' is the definition.
(synonyms)
'everybody with notes' is the wordplay.
'everybody' becomes 'fall' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'with' means one lot of letters go next to another.
'notes' becomes 'be'.
'fall' put after 'be' is 'BEFALL'.
'provide' acts as a link.
Can you help me to learn more?
(Other definitions for befall that I've seen before include "Turn out" , "Happen, occur" , "Happen to (someone)" .)