Largest of the Solomon Islands (11)
I believe the answer is:
guadalcanal
This clue could be a double definition.
'largest of' is the first definition.
The definition suggests a singular noun which matches the answer.
'solomon islands' is the second definition.
The definition and answer can be both locations as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'the' acts as a link.
Can you help me to learn more?
(Other definitions for guadalcanal that I've seen before include "Pacific WW2 battle" , "Pacific island site of Second World War campaign" .)