Possible Clues:

• Egan on the turn is too young
• Thus the horse in one is too young
• For instance, in Paris a refusal to turn up shows immaturity
• Perhaps at no time gone with an inclusion
• There isn't a backward Egan - not old enough
• Without a horse 'e is too young
• Why a car can't cause carnage?
• No worry with energy at a minimum in early period
• It's a minor matter and it's not one of 29 across