Is she a healer? (5)

I believe the answer is:

faith

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'is she' is the definition.

I can't explain the rest of the clue.

(Other definitions for faith that I've seen before include "'..... will move mountains'" , "Unshakeable belief" , "Strong belief in a supernatural power" , "A woman" , "Trust in someone" .)

I've seen this clue in the Evening Standard.

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