Note: master of riding waves to rise up once more (9)
I believe the answer is:
resurface
'rise up once more' is the definition.
('surface' can be a synonym for 'rise up' so perhaps 'resurface' is OK for 'rise up once more')
I don't understand the remainder of the clue.
(Other definitions for resurface that I've seen before include "make another appearance" , "Bob up" , "Come back up to the top of deep water" , "Emerge again" , "Once more appear" .)