Possible Clues:

• 'The Elder' of old Rome
• Conservative Roman senator
• Censor cinema and theatre obscenities to start with
• "Elder" Roman statesman
• ___ Institute, conservative think tank
• -- the Elder or -- the Censor, 234-149BC, Roman statesman, orator and writer
• Julius Caesar adversary
• Tenacious foe of Julius Caesar
• Punic Wars instigator
• "Younger" Roman orator