He may want to change roles with the winner (5)

I believe the answer is:

loser

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'he may want' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'change roles with the winner' is the wordplay.
'roles' anagrams to 'LOSER'.
Though, I am not clear how the anagram is indicated.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for loser that I've seen before include "Defeated competitor" , "one that's been left behind" , "Unsuccessful competitor" , "Defeated contestant" , "lemon" .)

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

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