Painter first to jump off pier (4)

I believe the answer is:

etty

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

I don't understand the remainder of the clue.

(Other definitions for etty that I've seen before include "English artist" , "English painter, William (1787-1849)" , "painter of the nude" , "British artist, 1787-1849" .)

I've seen this clue in The Telegraph.

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