Echo responder?

• Billy Joel "The Downeaster '___'"
• "Spy Kids" actress Vega
• Demie of "Euphoria"
• One setting an alarm, maybe
• Internet traffic statistics company
• Billy Joel's musical daughter
• Echo Dot assistant
• "Bomb" K-pop artist
• Chung who launched her own fashion label

Wikipedia Word definitions in Wikipedia
Alexa is a genus of legumes .