Islanders are heels (6)
I believe the answer is:
cubans
This could be a double definition.
'islanders' is the first definition.
(people from Cuba)
'heels' is the second definition.
The definition and answer can be both people as well as being plural nouns.
Maybe they are linked in a way I don't understand?
'are' acts as a link.
Can you help me to learn more?
(Other definitions for cubans that I've seen before include "Citizens of Castro's country" , "Nationality of Havana's citizens" , "They live on the largest island in the West Indies" , "They're native to Havana, say" , "islanders" .)