Fasten with rope and inflict punishment (4)

I believe the answer is:

lash

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'fasten with rope' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for lash that I've seen before include "Whip or scourge" , "Beat severely with a whip" , "Flexible strip of a whip" , "Strike with a whip" , "Bind tightly with a rope or cord" .)

I've seen this clue in The Globe and Mail.

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