Possible Clues:

• It connects to the Study via secret passage, in Clue
• The nick (anag.)
• Understanding about hunger, prepare food here?
• Where one might see utensils and cold chicken?
• Long to have knowledge about where food comes from?
• Range across long room
• Garden for growing vegetables
• In workplace Ken restrains urge
• Desire in boy to see galley
• Cook's room