Inventor agreed - get innovative (9)
I believe the answer is:
gadgeteer
'inventor' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'agreed get innovative' is the wordplay.
'innovative' indicates anagramming the letters.
'agreed'+'get'='agreedget'
'agreedget' with letters rearranged gives 'GADGETEER'.
Can you help me to learn more?
(Other definitions for gadgeteer that I've seen before include "Perhaps mobile fan" , "Gismo buff" .)