Crossword Genius

Nikola ---, electrical engineer (1856-1943) (5)

Ross

I believe the answer is:

tesla

(Other definitions for tesla that I've seen before include "Inventive sort" , "American scientist" , "SI unit; steal (anag.)" , "Nikola ---, electricity pioneer" , "Unit of magnetic flux density" .)

I've seen this clue in The Times.
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