Possible Clues:

• Capital of the country that 14-Acrosses are likely named after
• Capital where Robert Louis Stevenson died
• City where the Samoa Observer is headquartered
• Pacific island capital
• Where Samoa Airways is based
• World capital on the island of Upolu
• South Seas capital
• Capital with the University of The South Pacific
• Samoan Capital
• Capital on the island of Upolu