Bring in setter's drink! (6)
I believe the answer is:
import
'bring in' is the definition.
(bring in to a country)
'setter's drink' is the wordplay.
'setter's' becomes 'I'm' (referring to the crossword setter).
'drink' becomes 'port' (port is a kind of drink).
'im'+'port'='IMPORT'
(Other definitions for import that I've seen before include "Item from abroad" , "Bring in goods from abroad" , "Drift" , "Bring in from abroad to sell" , "Meaning - something from abroad" .)