You may find more information on the eligibility criteria for PFP here:
Website does not mention the stringent need to pass your CLB but focuses more on your raw aggregate score and subject-specific requirements. As such, I believe you may try to apply if your score meets the requirement.
In the rare scenario, you do not meet the score requirements, I suggest you may consider applying anyway. If your CV/resume is fantastic (Eg. Community service, CCA, etc), i believe you will still be considered on a case by case basis.
Good luck and all the best to you!