Also take a look at St Georges Tooting. Over the past few years they seem to have entered clearing rather than accept dropped grades. Not for everyone, but it has a suburban rather than Central London location so living will be cheaper, and is a stand alone school within a hospital. People we know who have studied there, speak highly of it.
I know someone who was offered a place there last summer. After working in a hospital during his gap year he decided he wanted to study medicine rather than take up his existing offer, so took UKCAT in late July, and was interviewed by SGUL in August. Things happen quickly so it is worth some early research to be sure that the medical schools that are in clearing are places where you would want to spend 5 years. If your DDs current UKCAT score is not great, it might also be worth planning a 2018 retake in advance of a general phone round.
Lots get places on reapplication. The extra year really helps with maturity and makes the first year that much easier.
If you can afford it, another option is Buckingham. Its a four and a half year course at a private University, so fees are apparently non-profit but without the NHS subsidy, so effectively at overseas student rates. Apply in August for a January start.
Good luck. It is so hard when bright, hard working and personable DC face failure.