Possible Clues:

• Celibacy
• Virginity
• Purity of speed cut by 20 per cent in London?
• Innocence of children, Italian, evident during stay abroad
• Abstinence and purity have become passé in London?
• What a belt might ensure
• Abstention from carnal activity
• Have you, in an old-fashioned way, got this, pure and simple, in the town? (8)
• Virginity's finally lost in London?
• Virtue occupies little time in the area of finance