Sunny maybe found among lost Ella recordings (7)

I believe the answer is:

stellar

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

'sunny maybe' is the definition.
I can't judge whether this defines the answer.

'among lost ella recordings' is the wordplay.
'among' indicates the answer is hidden within the clue.
'STELLAR' can be found hidden inside 'lost ella recordings'.

'found' is the link.

Can you help me to learn more?

(Other definitions for stellar that I've seen before include "celebrity" , "Excellent - shining bright?" , "High-class" , "Starry" , "Top-notch" .)

I've seen this clue in The Independent.

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