Makes slow progress by streetcar (7)

I believe the answer is:

strolls

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'makes' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Maybe you can see an association between them that I don't see?

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for strolls that I've seen before include "Takes a turn" , "Ambles" , "Walks" , "Saunters" .)

I've seen this clue in The Globe and Mail, The Irish News and The Guardian.

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