Possible Clues:

• Radical youth leader originally pursuing the unruly
• Old antiknock fuel
• Solver's in line for 26
• ___ alcohol, gasoline additive
• 'Chemically, your inside sounds like her (5)'
• Antiknock ingredient
• __ acetate: paint solvent
• Old antiknock gasoline
• Type of alcohol that sounds like a name
• Leaded fuel component