Possible Clues:

• Building seen from both ends of the editor's office
• Urban skyline component
• One's put up with editor if he's so cold and hard
• Fractured if ice grips building
• 'Large, imposing building (7)'
• Building uninsured if I cease to provide cover for it
• Building could become deficient after National Trust quits
• Fine building
• It's a put-up job by the editor if he's frozen
• Journalist provided with cool building