Possible Clues:

• A house unseen on skyline over a US state
• Reservation holder?
• Home of the Pac-12's Wildcats
• The first and last American state
• Major copper exporter
• Song embodying unending territory somewhere in the USA
• Fresh air unknown over a southern state
• Brand name whose middle letter is capitalized for no apparent reason
• Reptile in a state
• State where Rania and Oz get confused