My academic counselor told me that there are great opportunities for clearing this year
They can't have a clue what will be in August Clearing yet - no-one does.
Whilst top Law Unis requiring LNAT will not be in Clearing for UK applicants - they may be for International places.
However if they have already rejected you this cycle, they will not look at you again.
Where have you been rejected from?
Where do you have an offer from?