Service Europeans primarily associated with America (3)
I believe the answer is:
use
'service' is the definition.
(thesaurus)
'europeans primarily associated with america' is the wordplay.
'primarily' says to take the initial letters.
'associated with' means one lot of letters go next to another.
'america' becomes 'us' (abbreviation for the United States**).
The initial letter of 'europeans' is 'e'.
'e' after 'us' is 'USE'.
(Other definitions for use that I've seen before include "Employment; utilise" , "Apply, employ" , "Operate" , "particular church liturgy" , "Value" .)