Many cheer the reformation of Satan (4-5)

I believe the answer is:

arch-enemy

'satan' is the definition.
(I've seen this before)

'many cheer the reformation' is the wordplay.
'the reformation' indicates anagramming the letters.
'many'+'cheer'='manycheer'
'manycheer' with letters rearranged gives 'ARCH-ENEMY'.

'of' acts as a link.

(Another definition for arch-enemy that I've seen is " Principal antagonist".)

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

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