Crossword Genius

No longer a film star? (3,2,3,7)

Ross

I believe the answer is:

out of the picture

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

'star?' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'no longer a film' is the wordplay.
I cannot really see how this works, but
'no' could be 'o' (resembles 0 - 'no' can mean 'zero') and 'o' is found within the answer.
'film' could be 'picture' (synonyms) and 'picture' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in The Daily Express.
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