Stark rocks in limestone scenery (5)

I believe the answer is:

karst

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'limestone scenery' is the definition.
The definition suggests a singular noun which matches the answer.

'stark rocks' is the wordplay.
'rocks' indicates anagramming the letters.
'stark' with letters rearranged gives 'KARST'.

'in' is the link.

Can you help me to learn more?

(Other definitions for karst that I've seen before include "Limestone landscape" , "Rough terrain" , "limestone area" .)

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