Possible Clues:

• Socialise with a fair amount of Chicago, for instance, and Elvis touring around island
• Opening 18 across for sage heading off to socialise
• One engineer is going to Spain to socialise
• By the sound of it, it's not for the military to see to it that they stop being so barbaric
• Polite untruths are said to educate
• Improve the behaviour of - savages?