Raised on booze in country (5)
I believe the answer is:
niger
'country' is the definition.
(African country)
'raised on booze' is the wordplay.
'raised' shows that the letters should be reversed in order (going up in a down clue).
'on' becomes 're' ('on' can be mean 'with reference to').
'booze' becomes 'gin' (type of alcohol).
're'+'gin'='regin'
'regin' back-to-front is 'NIGER'.
'in' is the link.
(Other definitions for niger that I've seen before include "Major West African river" , "The black" , "W. African country" , "West African river and country" , "Country in interior of N Africa, capital Niarney" .)