Close to safe area in hazardous Scottish island (7)
I believe the answer is:
Here is my best explanation:
'scottish island' is the definition.
'close to safe area in hazardous' is the subsidiary indication.
'close to' indicates one should take the final letters (the close/ending of).
'area' becomes 'a' (maths abbreviation).
'in' means one lot of letters goes inside another.
'hazardous' becomes 'risky' ('risky' can be a synonym of 'hazardous').
The last letter of 'safe' is 'e'.
'a' inserted inside 'risky' is 'riskay'.