Possible Clues:

• Element seldom found on land
• Element rather unusually found around piece of land
• Metallic element
• If this, elements are rather confusing
• Oxide from little-known planet
• One of a group of 15 hard to distinguish elements - at her rear (anag)
• Element class including scandium
• Band with the 1970 hit 'Get Ready'
• Oxide, uncommon on our planet
• Unusually good ground yields element