Possible Clues:

• Sort of radiation, nuclear, regularly causing flap
• Pendant above the throat
• Part of one's mouth
• Body part that helps you form sounds
• Article from France on kind of radiation used initially for part of the palate
• Anatomical dangler
• Body part whose name means 'little grape'
• Source of vocal sounds using very unusual letters, awkward for beginners
• It swings in the mouth
• Dangly lobe