Five-minute rock classic with an iconic organ intro Crossword Clue

 The answer to the crossword clue "Five-minute rock classic with an iconic organ intro" is Baba O'Riley by The Who. 

It is a five-minute long rock song with a distinctive organ intro. The song is about the fear of aging and the passage of time. It was inspired by the writings of the Indian spiritual teacher Meher Baba.

The song was released in 1971 on the album Who's Next. It became a hit single, reaching number 12 on the Billboard Hot 100 chart. It has been covered by many artists, including The Smashing Pumpkins and Green Day.

The organ intro to Baba O'Riley is played by Pete Townshend, the guitarist and singer of The Who. He used a Hammond organ to create the sound. The intro is played in a style called "motorik," which is characterized by its repetitive beat.

Baba O'Riley is considered one of the classic rock songs of all time. It is a powerful and moving song that has resonated with listeners for generations.