Fighter who's creating a splash (7)
I believe the answer is:
spatter
'a splash' is the definition.
('spatter' can be a synonym of 'splash')
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for spatter that I've seen before include "Sprinkle" , "Cover with droplets" , "shower" , "Set part (anag.)" , "spray" .)