Muslim claims I am converted (7)

I believe the answer is:

islamic

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

'muslim' is the definition.
(I know that muslim can be written as Islamic)

'claims i am converted' is the wordplay.
'claims i' can be anagrammed to 'ISLAMIC'.
Though, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for islamic that I've seen before include "Relating to a particular religion" , "Relating to Muslim religion" , "Of Mohammed's religion" , "Concerning the Muslim religion" , "religious?" .)

I've seen this clue in The Irish News.

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