Tesla's possible commercial project for Welshman? (5)

I believe the answer is:

evans

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'for welshman?' is the definition.
(common Welsh surname)

I don't understand how the remainder of the clue works.

(Other definitions for evans that I've seen before include "Lee --, British comedian" , "Welshman" , "Female writer's real name" , "Theatrical dame" , "Common Welsh surname" .)

I've seen this clue in The Independent.

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