The shop is at Port Sarim.
You can't clean it. Don't worry; you're not supposed to. The only purpose of becoming his employee was to gain access to the back room; you were never meant to actually work for him. He doesn't mind.
You have to start that Redbeard quest. Otherwise he just says that you're not allowed in the back. Once you finish the pirate quest (I've forgotten it's name), you continue to "work" there and have access to the back room of his shop. You can never quit or stop "working" for him, but you don't have to do anything.
You have to smuggle it out in a crate of bananas. Fill a crate with bananas for Louis, but before talking to him, slip the bottle of rum into the crate. Then have him send it to the mainland; you can find the rum in the back of Wydin's shop in Port Sarim.
I don't think there is any such thing as a player-owned shop in RuneScape.
Jagex shop since their the creators of RuneScape.
tutoiral or a ax shop
the genral shop
the food shop in Port Sarim.
This only works if you've done Pirate's Treasure (the quest). Grab an apron from the fishing store near the docks. It's hanging on the far wall in the corner. Wear it (it's only for a little while) and enter Wydin's shop. Enter his back room and search the far right crate against the back wall; it contains raw chickens; yes, you would like to take one. Sell it to Wydin; it buys for 32 coins. Drop the extra coins and the apron, if you like, upon your arrival at Karajma.
get it from shop in huop
At the barber shop in Falador.
You got the wrong location the fishing shop is in port salem.