This does not mean the Gorgonzola in the bedroom in Act 1, you need this to free the sniffer.
There is a second piece of Gorgonzola in Act 3 that you can't pick up if you want this achievement. The policeman will drop it on the floor if you knock on the police station.
Investigate the pile of clothes in the hallway to get the controller and map. Use the map to go to the Town Centre and pick up the Wensleydale from the table next to the grocers. Return home and go upstairs to the bedroom. Go down to the dining room and pull the lever next to the door. Go back upstairs and pick up the record from the record player. Go down to the cellar and use the controller with Wensleydale. Go upstairs into the back garden (through the kitchen). Drop the Wensleydale down the cellar doors. Return to the cellar and use the hatch on the sniffer. Use the record on the record player.