One way to cut out ill-feeling (7)

I believe the answer is:

surgery

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'one way' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see a link between them that I can't see?

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for surgery that I've seen before include "NHS cuts" , "GP's place of work" , "Medical intervention" , "Branch of medicine" , "Doctor's consulting room" .)

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

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