Possible Clues:

• Scrumpy might be produced by this country farm, far away
• Island, source of cough syrup in original form
• Fancy Prussia suppressing a republic
• Note from counterspy: ''this is a divided island''?
• Med island state
• Island choosy passenger underrates showing regular vacancies
• Island country sides with president, almost certain to make a comeback
• State syrup, heading off cough, has worked
• Where to find knickers here, one could say
• Mediterranean island coveted by 23 and Turkey