Wash three imported articles (7)

I believe the answer is:

launder

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'wash' is the definition.
(I know that wash can be written as launder)

I don't understand the rest of the clue.

(Other definitions for launder that I've seen before include "Wash, starch and iron" , "Perhaps decriminalise" , "Cleanse (material or money)" , "Make clean again - clothes or money" , "Wash and iron linen" .)

I've seen this clue in The Globe and Mail.

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