Possible Clues:

• Express approval when posted
• The agreeable sound of 22 across (6)
• Agreement or concurrence
• Yes, that's a sound 22 across
• Yes, like the end of 4 down
• Agree it's not necessarily how recipient views it?
• No it isn't the way it left here
• How a silly one and ten more might make themselves agreeable
• One 15 across and ten more to make it agreeable
• The agreement in the way it left here