Characters from Capri on another island (4)
I believe the answer is:
iona
'island' is the definition.
(Scottish island)
'characters from capri on another' is the wordplay.
'characters from' indicates the answer is hidden within the clue.
'IONA' can be found hidden inside 'capri on another'.
(Other definitions for iona that I've seen before include "island off Scotland" , "Macbeth's resting" , "Scottish land known for St Columba" , "Hebridean island, where in 563 St Columba founded a monastery" , "Scots monastery isle" .)