Inventor — no American one from what we hear (5)
I believe the answer is:
nobel
'inventor' is the definition.
(Alfred Nobel, inventor of dynamite)
I cannot understand how the remainder of the clue works.
(Other definitions for nobel that I've seen before include "Source of prizes" , "Swedish prize" , "Prize guy" , "Swedish prize-giver" , "Prize-endowing Swedish chemist" .)