Possible Clues:

• Pliny the Elder called it "the Grape of the Bees"
• Accountant plugs something essential to make capital
• Capital on the Arabian Peninsula
• Omani capital — white grape
• Greek character: shift for capital
• Grape from California in new wine
• American state consumed by unfermented grape juice from Asian capital
• Fragrant wine grape
• Kitty, after quantity of money, brought back wine
• Grape that's also a world capital