Related Clues:

• Divided river outlet
• Coped with a dropping mouth
• Insect flying across top of useless trap
• Type of wing first used by Daedalus
• Branching river mouth
• Mouth of, eg, the Nile
• Handed out a moving letter
• Silted river mouth
• What a big mouth might have
• River ending
• Fourth letter of the Greek alphabet
• Area by the Mississippi's mouth
• One hears word of it
• Kind of blues
• Mouth that doesn't talk