Magic dragon's name, in song

PUFF

This friendly, fire-breathing creature lived by the sea in a famous 1960s folk tune.

This clue refers to "Puff the Magic Dragon," a famous folk song from the 1960s by Peter, Paul and Mary. The name "Puff" is the dragon’s title in the song, making it a straightforward reference to a well-known cultural piece. If you recognize the song, the answer comes easily—just the dragon’s first name.