Crossword Genius

Ray indeed is happy (9)

Ross

I believe the answer is:

delighted

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

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

'ray indeed' is the wordplay.
I cannot really understand how this works, but
'ray' could be 'light' (a ray of light) and 'light' is located in the answer.
The remaining letters 'deed' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for delighted that I've seen before include "Greatly pleased" , "Pleased as Punch" , "Overjoyed" , "Joyful" , "Happy" .)

I've seen this clue in The Guardian.
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