One-named singer of the 2019 single "Moral of the Story" (4)

I believe the answer is:

ashe

(Other definitions for ashe that I've seen before include "Arthur ___, American tennis player 1943-1993" , "Arthur, who came to court" , "US court star" , "Ex-Wimbledon champ" , "tennis champ" .)

I've seen this clue in The Washington Post.

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