Island in conflict with island, briefly (7)
I believe the answer is:
antigua
'island' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for antigua that I've seen before include "Largest of Leeward Is." , "former British possession" , "Caribbean island linked with Barbuda" , "Aga unit in the West Indies" , "holiday destination" .)