Possible Clues:

• Write
• Write to
• Say hi to in writing ... or what to do to the first letter of each starred clue?
• Write a letter, or a hint to the deletion that formed each starred clue's answer
• Communicate in sound?
• Keep in touch, perhaps
• Do some fishing, but keep in touch
• Does it befall that you will write a letter?
• Send a letter, e.g.
• Write ... or go fishing?