Some of the best hairdressers are Asian (4)

I believe the answer is:

thai

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

'some of the best hairdressers' is the wordplay.
'some of' says the answer is hidden in the clue.
'THAI' can be found hidden inside 'best hairdressers'.

(Other definitions for thai that I've seen before include "One from Bangkok" , "Easterner" , "Native to Phuket, for example" , "East Asian" , "National" .)

I've seen this clue in The Telegraph.

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