Vast, semi-arid, grassy plain of Eurasia (6)

I believe the answer is:

steppe

(Other definitions for steppe that I've seen before include "Large treeless area of Siberia" , "Treeless plain of Russia" , "Dry grassy plain of eastern Europe and Asia" , "Flat area of eastern Europe or Russia" , "(Russian) grassy plain" .)

I've seen this clue in The Sun.

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