Someone taking ace roles primarily (4)

I believe the answer is:

star

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'someone taking ace roles primarily' is the definition.
I know that 'roles' relates to this answer.

'someone taking ace roles primarily' is the wordplay.
'primarily' suggests taking the first letters.
The first letters of 'someone taking ace roles' is 'STAR'.

Can you help me to learn more?

(Other definitions for star that I've seen before include "Five-pointed figure" , "Pointed symbol" , "Actor in a principal role" , "Astronomer - dreamer" , "Eg, Rigel, Aldebaran" .)

I've seen this clue in The Telegraph.

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