Group employed to take one to the island (6)
I believe the answer is:
staffa
'group' is the definition.
Both the definition and answer are singular nouns.
Maybe you can see a link between them that I don't see?
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for staffa that I've seen before include "small uninhabited island" , "Scottish island" , "Fingal's cave isle" , "Hebridean island: site of Fingal's Cave" , "Hebridean isle" .)