Possible Clues:

• Lighten up
• Reduce period of instruction for announcers
• Moderate sermon is heard
• There's not so much E over N here
• Verbal teaching contract
• Bring down
• Dull service for the audience
• Contract, for example, that's verbal
• Moderate teaching unit, so it's said
• After half a century, get there in Germany and don't make so much of it (6)