Crossword Genius

Isn't it arch working for the enemy? (10)

Ross

I believe the answer is:

antichrist

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

'the enemy?' is the definition.
Both the answer and definition are singular nouns.
Maybe you can see an association between them that I don't see?

'isn't it arch working' is the wordplay.
'working' indicates an anagram.
'isnt'+'it'+'arch'='isntitarch'
'isntitarch' anagrammed gives 'ANTICHRIST'.

'for' is the link.

Can you help me to learn more?

(Other definitions for antichrist that I've seen before include "Opponent of Jesus" , "religious foe" .)

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