Possible Clues:

• A good way to get 50% of sign language
• Language that gave us "shawl"
• 46-Across tongue
• Ayatollah's speech
• Language is a repetitive problem that should be anticipated by football chiefs
• For this modern language, is a service set up?
• Language of Tehran
• Semi-hyperopic tongue!
• Language from which lemon and julep come
• Modern Persian lang.