Possible Clues:

• Being lighted, I hum for the element
• The lightest metallic element
• Element of one in Greats
• Reactive metal ignited gas, forcing the Spanish to flee
• Chemical element (Li), used in batteries
• Antidepressant medicine
• Nirvana's light-metal anthem
• Cell element
• Silver-white metal (symbol: Li)
• Element ignited with smell containing iodine