If it's the same as when I was in college in the UK in the 90s, you would apply to your local council here for a grant in the same way as you would if she were going to college here. So if she's not eligible here, the bad news is she won't get anything for going over there. Might be worth gving citizens information a call on 1890 777 121 to clarify.
It's worth looking into scholarships as there are often more of them out there than you'd think. Other than that the only thing is the UK student loan which she would be entitled to apply for, which she would pay back after graduating.