Japanese plant university introduced to a Caribbean island (6)
I believe the answer is:
aucuba
'japanese plant' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'university introduced to a caribbean island' is the wordplay.
'university' becomes 'U' (abbreviation for university).
'introduced to' is an insertion indicator.
'caribbean island' becomes 'cuba' (I've seen this in another clue).
'a'+'cuba'='acuba'
'u' inserted within 'acuba' is 'AUCUBA'.
Can you help me to learn more?
(Other definitions for aucuba that I've seen before include "Laurel" , "shrub" .)