Asian navies meet at sea (10)
I believe the answer is:
vietnamese
'asian' is the definition.
(Vietnamese is an example)
'navies meet at sea' is the wordplay.
'at sea' indicates anagramming the letters.
'navies'+'meet'='naviesmeet'
'naviesmeet' with letters rearranged gives 'VIETNAMESE'.
(Other definitions for vietnamese that I've seen before include "Asians" , "Asian language" , "People" , "oriental language" , "Natives of Hanoi" .)