Crossword Genius

Peaceful border in Asian region (7,3)

Ross

I believe the answer is:

pacific rim

'asian region' is the definition.
(region including part of Asia)

'peaceful border' is the wordplay.
'peaceful' becomes 'pacific' (similar in meaning).
'border' becomes 'rim' (I've seen this in other clues).
'pacific'+'rim'='PACIFIC RIM'

'in' is the link.

(Other definitions for pacific rim that I've seen before include "where business is booming" , "Asian region" , "lands around ocean" , "Increasingly prosperous region" .)

I've seen this clue in The Times.
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