Does this exist and how much might it be?

[alexw]

I will need some additional help from September? I will need, ideally, a part-time, term-time live out flexible nanny/au pair/help to do pick up from school and nursery, supervise homework and stay til about 7. Some Eve's will need longer. Does such an arrangement exist? What is the best name to advertise for - nanny? Au pair? Etc... Tia

Au pairs are all live in afaik.

I think you are looking for a nanny.

have a job like this and it was as advertise it baby sitter as it was till 10 at night .
but if you what to child-care vouchers you will need a ostesd reg nanny

this will depend on where you live and what you want to pay

i live where there are not many nanny but lots of young women looking for cash in hand work so baby sitter works in an ad better as that is mostly cash in hand work.

You could well get a student

this is want live out

if you dont live in london
have a look on gumtree / child care .co.uk and nanny job and local paper and see what job are out there and what you need to say in ad