music: Who established "Alice's Restaurant"?

Questions

Some stores would not stock his Lovesexy LP as he appears nude on the cover?

Song - "Ain't nothing for us in Belfast, the pound is so old its a pity"?

Song - "I've got nothing to do, but hang around and get screwed up on you"?

Song at the end of which Topol steps in horse manure in "Fiddler on the Roof".?

Song by The Who which included the lyrics "...I get excitement at your feet."?