Crossword Genius

Great achievement (4)

Ross

I believe the answer is:

feat

'great achievement' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for feat that I've seen before include "Notable achievement" , "Exploit; achievement" , "Courageous act" , "Notable act" , "An accomplishment of fate" .)

I've seen this clue in The Times and the Newsday.
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