Possible Clues:

• Like a dauphin
• Adam, of the "Bonanza" brothers
• First in line, in a way
• Some damsel destined to be the one who will succeed?
• Septic Flesh "The ___ Cosmonaut"
• One of the deliveries from Adam presumably
• First alternative steel band exclude absent ...
• First in line? Last in line? First in line? In short, the end of the line
• Senior one
• Firstborn, among siblings