Possible Clues:

• Old form of transport leaving area, thus lying outside
• Criminal cross — it's nicer outside
• Old coach having left area, thus lying outside
• Not inherent
• Not essential or inherent
• Foreign extremists reduced by 60% in western half of Sicily
• Nonessential
• Not part of the essential nature of something
• Originating from the outside
• What's inessential is to be thrown out in next crisis, not the last