Crossword Genius

Makes a set play, perhaps (5)

Ross

I believe the answer is:

tunes

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'makes' is the definition.
The definition and answer can be both related to change as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Another definition for tunes that I've seen is " Airs, melodies".)

I've seen this clue in the Evening Standard.
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