Leaders make stars align (5)

I believe the answer is:

tsars

I'm a little stuck... Click here to teach me more about this clue!

'leaders' is the definition.

'stars align' is the wordplay.
'stars' can be anagrammed to 'TSARS'.
Though, I am not sure how this is indicated.

'make' is the link.

Can you help me to learn more?

(Other definitions for tsars that I've seen before include "Old Russia's rulers" , "Old monarchs" , "Old Russian rulers" , "Russian emperors" .)

I've seen this clue in The Mirror.

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