Crossword Genius

Little the outlaw does for his royal enemy? (4)

Ross

I believe the answer is:

john

'little the outlaw' is the definition.
(Little John, friend of Robin Hood)

I don't understand the remainder of the clue.

(Other definitions for john that I've seen before include "With nineteen accross twentieth century US actor known for westerns, etc" , "Wayne, Denver or Elton?" , "where Jack came from" , "Gospel writer" , "Trick" .)

I've seen this clue in The Times.
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