Possible Clues:

• Not all unsolicited advertising permitted
• Allowed starters for lunch ideally consumed with wine
• On the level
• Okay, legally
• Lawful to have lighted about 1100
• Allowed as by law, not forbidden
• What can one do with lolly with no end of stick allowed?
• Morally acceptable
• Element of publicity that's not banned
• It makes L awful if I see it at last