Possible Clues:

• Sherpas, nationally
• European captivated by translation of plain language
• Native of one Himalayan state
• Language akin to Hindi
• Katmandu language
• Alpine resort for someone living the high life?
• Variety of alpine, one at home in mountains
• Language used to reject writer with a brief lie
• 'Roof of the World' resident
• Like the only nonrectangular national flag