Rock faces such as Mr. Richards (6)

I believe the answer is:

cliffs

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

I can't explain the remainder of the clue.

(Other definitions for cliffs that I've seen before include "Steep rock-faces as on coast" , "Steep rock faces" , "High, steep rockfaces" , "Sheer rock faces overlooking sea" , "Dover has white ones" .)

I've seen this clue in The Irish Independent.

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