Spa region, resort in a foreign country (9)
I believe the answer is:
singapore
'foreign country' is the definition.
'singapore' can be an answer for 'country' (Singapore is an example). I am unsure of the 'foreign' bit.
'spa region resort' is the wordplay.
'resort' indicates anagramming the letters (re-sort the letters).
'spa'+'region'='sparegion'
'sparegion' with letters rearranged gives 'SINGAPORE'.
'in a' acts as a link.
Can you help me to learn more?
(Other definitions for singapore that I've seen before include "Commonwealth city state" , "Island nation once a British crown colony" , "part of Asia" , "Foreign capital" , "Far Eastern island state" .)