Language of Southeast Asia (4)

I think it could be either:

Which length description are you looking for?:

thai

'language of southeast asia' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for thai that I've seen before include "Easterner" , "Indo-Chinese language" , "Sort of eastern cooking" , "An Asian cuisine" , "oriental language" .)

I've seen this clue in The Wall Street Journal.

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