Possible Clues:

• Nursery for high fliers
• One housed in Jane's mountain refuge
• Large nest egg: your retirement is easy from the start
• Nest that's rearing first of young in Ireland
• Bird's nest I found in Australian lake
• Type of nest that's unknown in lake
• For high-rise accommodation look around the Royal Institution
• Crossing Atlantic state, gaze at lofty dwelling
• The first year, in short is in it for the eagle
• The grain comes up, that is to say, for the eagle