Possible Clues:

• Without anxiety or worry
• Untroubled, like pedestrian zone round Egypt's capital
• Not worried about heartless whistleblower
• Spooner's interpretation of good-looking Native American as happy-go-lucky
• Native American without fear, wandering untroubled
• Not worried about a heartless judge
• Unconcerned about heartless judge
• Clare rings a referee about to be laid back
• Untroubled about heartless football official
• Totally unworried about a heartless official in game