A cuppa with the cleaner (4)

I believe the answer is:

char

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'the cleaner' is the definition.
(charwoman is a type of cleaner)

I don't understand the rest of the clue.

(Other definitions for char that I've seen before include "Burn slightly" , "Scorch: trout-like fish" , "Burn; cleaner; fish" , "'Mrs Mopp'" , "Cleaner - tea" .)

I've seen this clue in the Evening Standard.

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