Manages to vary in scope (5)

I believe the answer is:

copes

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

'manages' is the definition.
('cope' can be a synonym of 'manage')

'vary in scope' is the wordplay.
'scope' anagrams to 'COPES'.
But, I'm unsure how the anagram is indicated.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for copes that I've seen before include "Manages; church vestments" , "Somehow manages" , "'Manages, gets by (5)'" , "Manages successfully, gets by" .)

I've seen this clue in The Globe and Mail.

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