Muse; brilliant idea (11)

I believe the answer is:

inspiration

I believe this is a double definition.

'muse' is the first definition.
(I've seen this before)

'brilliant idea' is the second definition.
(thesaurus)

(Other definitions for inspiration that I've seen before include "Sudden brilliant idea" , "Breathtaking" , "bright idea?" , "Creative thought" , "Arousal to creativity" .)

I've seen this clue in The Times.

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