Once more stimulates naughtily aware toy boys (9)

I believe the answer is:

reawakens

I'm a little stuck... Click here to teach me more about this clue!

'once more stimulates' is the definition.
I can't judge whether this definition defines the answer.

'naughtily aware toy boys' is the wordplay.
'naughtily' indicates anagramming the letters.
'toy boys' becomes 'kens' (I can't justify this - if you can you should believe this answer much more).
'aware' anagrammed gives 'reawa'.
'reawa'+'kens'='REAWAKENS'

Can you help me to learn more?

(Other definitions for reawakens that I've seen before include "Fires" , "Again evokes" .)

I've seen this clue in The Independent.

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