Inventor's inspiration (4)

I believe the answer is:

idea

'inventor's inspiration' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for idea that I've seen before include "Clue" , "Notion, image" , "Content of cognition" , "Inkling" , "Sudden inspiration?" .)

I've seen this clue in the King Feature Syndicate and the Newsday.

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