Crossword Genius

Vacillate on what to get from butcher's (4,3,6)

Ross

I believe the answer is:

chop and change

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

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for chop and change that I've seen before include "Repeatedly vary one's preference" , "Keep making alterations" , "Seesaw (metaphorically)" , "Vacillate - keep altering plans" , "Blow hot and cold" .)

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