A star of professional golf (5)

I believe the answer is:

algol

'a star' is the definition.
(Algol is an example)

'of professional golf' is the wordplay.
'of' indicates the answer is hidden within the clue.
'ALGOL' is hidden within 'professional golf'.

(Other definitions for algol that I've seen before include "Star" , "language (but not used in speech)" , "Computer language" .)

I've seen this clue in The Guardian.

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