Wash three articles from abroad (7)
I believe the answer is:
launder
'wash' is the definition.
(synonyms)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for launder that I've seen before include "Make clean, clothing or money" , "Make clean again - clothes or money" , "Cleanse (material or money)" , "Led a run (anag)" , "Clean, clothes or mafia money" .)