Battlefield tree stripped bare (5)

I believe the answer is:

ypres

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'battlefield' is the definition.
(site of the Battle of Ypres, 1918)

I can't explain the remainder of the clue.

(Other definitions for ypres that I've seen before include "World War I battlefield" , "WWI battlefield" , "WW1 battle town" , "Belgian World War One battle site" , "WW1 battle site" .)

I've seen this clue in The Times.

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