Engineering in clearing

Hi
My tutor refused to send my ucas application and suggested I wait until clearing to apply because of my gcse grades.
However I achieved all B's in gcse and I'm confident I'm going to get GOOD grades at a level because I've been working really hard. What is the probabilityof me getting a Russell group uni through clearing? Please if you've been in a similar position or you know someone that has been. How did it go?
Thank you!

What type of engineering? What grades at A-level?

Mechanical engineering or general. With grades AAB

Last year several RG unis such as Birmingham, Liverpool and SOuthampton had such courses in clearing. There were also courses at non-RG unis known to be good for engineering such as Lancaster, Aston and Brunel. The situation could be different this year, of course.

As to grades, the lists don't give that information but most unis in clearing give their standard offer or a grade below, possibly two if you are lucky, so AAB should be fine.