Possible Clues:

• Gee! The earth of Rome is up where there's room at the top
• To a great extent about R there may be room at the top
• Room for starving artist?
• There's room at the top for Reg and his art
• Attic, home of struggling artist?
• Starving artist's flat
• Room on the top floor of a house
• Unlofty loft
• Unfinished attic space
• Arrives in secure room at the top