Cleaner wary about boy (8)

I believe the answer is:

charlady

'cleaner' is the definition.
(I've seen this before)

'wary about boy' is the wordplay.
'wary' becomes 'chary' (synonyms).
'about' indicates putting letters inside.
'boy' becomes 'lad' (informal term for boy).
'chary' placed around 'lad' is 'CHARLADY'.

(Another definition for charlady that I've seen is " Female cleaner".)

I've seen this clue in The Telegraph.

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