Whisky area and island (5)
I believe the answer is:
malta
'island' is the definition.
(Malta is an example)
'whisky area' is the wordplay.
'whisky' becomes 'malt' (malt whisky is a kind of whisky).
'area' becomes 'a' (maths abbreviation).
'malt'+'a'='MALTA'
'and' acts as a link.
(Other definitions for malta that I've seen before include "seagirt republic" , "small island" , "A Med. island" , "Island member of the European Union" , "Island European country" .)