Simply shoplift or relax! (4,2,4)

I believe the answer is:

take it easy

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'relax' is the definition.
(I know that take it easy is a more specific form of relax)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for take it easy that I've seen before include "Avoid stress - remain calm" , "avoid exertion" , "Put your feet up" , "to rest" , "Lighten up" .)

I've seen this clue in the Sydney Morning Herald.

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