Island capital set back when hotel doesn’t open (4)
I believe the answer is:
iona
'island' is the definition.
(Scottish island)
'capital set back when hotel doesn't open' is the wordplay.
I cannot quite understand how this works, but
'when' could be 'on' (I've seen this in other clues) and 'on' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for iona that I've seen before include "St Columba monastery isle near Mull" , "St Columba's island of the Inner Hebrides" , "Isle of the Inner Hebrides, made famous by St Columba" , "Scottish land known for St Columba" , "island off Scotland" .)