Scottish location that's heaven, by the sound of it? (4)
I believe the answer is:
skye
'scottish location' is the definition.
(I've seen this before)
'heaven by the sound of it?' is the wordplay.
'heaven' becomes 'sky' (I've seen this in another clue).
'by the sound of it?' indicates a 'sounds like' (homophone) clue.
'sky' sounds like 'SKYE'.
'that's' is the link.
(Other definitions for skye that I've seen before include "Inner Hebridean isle" , "Portree's isle" , "Destination of a princely boat trip" , "somewhere off Scotland's west coast" , "Island - keys (anag)" .)