A charmer - let's face it (5)

I believe the answer is:

music

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'it' is the definition.
The definition suggests a singular noun which matches the answer.

I don't understand how the remainder of the clue works.

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(Other definitions for music that I've seen before include "(Pleasant) sequence of sounds" , "'Fled is that ---: do I wake or sleep?' (Keats)" , "Orsino's food of love (Twelfth Night)" , "orchestral work" , "Pleasing sound" .)

I've seen this clue in the Evening Standard.

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