.. Local word for "Leathery"

The local shopkeeper could be of help here.

Talk to him. Some rascals came and sprayed words into his storeroom wall.

Talk to the shopkeeper until he gives you a permission to enter the storeroom.

The graffitis are on the wall. Too bad one of them is behind that fur coat.

"Curly has a face like a crumplish swan anus."

Dunno. Maybe go around asking about Curly?

Go talk to the barkeeper. He will tell you more about Curly, the caretaker.

He says Curly's face is thick and leathery.

Go read the graffiti again. Lucy should now come up with a word for leathery: Crumplish.