Law at 'good' Unis = rarely in Clearing - they don't need Clearing to fill the course, and will take their existing 'Firms' fill any spare places.
'Which Uni' realltydoes matter for Law and I'd urge you to spend this year working your socks off (really working, not just pretending) to get the beat possible A level grades you can, and applying to 5 good choices next year rather than accepting something you regret this year.