I go far, in potential, as a barber (6)

I believe the answer is:

figaro

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

'i go far in potential as a' is the wordplay.
'i go far' anagrams to 'FIGARO'.
However, I'm not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for figaro that I've seen before include "Motzart opera ''The Marriage of . . . . . . ''" , "Mozart tells of his operatic marriage" , "The Barber of Seville" , "devoured in Paris" , "Le -, French paper" .)

I've seen this clue in the Evening Standard.

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