DC ballplayer (3)

I believe the answer is:

nat

(Other definitions for nat that I've seen before include "Politician" , "Supporter of the SNP (abbr)" , "A nationalist" , "King Cole" .)

I've seen this clue in the Jonesin', The Washington Post, the Newsday.com, the King Feature Syndicate, the Newsday and the Jonesin Crosswords.

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