Possible Clues:

• Well, that's what one makes one
• Tamper with - falsify - one of the 14 films
• Put up with eight fish bones
• Medic or holder of highest university degree
• Consultant's opening taking scan
• Licensed medical practitioner
• One seeing cases getting caught in exit?
• 19-Across, e.g
• Who possibly could be caught breaking into house?
• Learned to make the fish go bad back there