Overlooking loch, visited one area in Scotland (9)
I believe the answer is:
caledonia
'scotland' is the definition.
(I've seen this before)
'overlooking loch visited one area in' is the wordplay.
'overlooking' suggests deleting specific letters.
'loch' becomes 'l'.
'visited' becomes 'called on' ('call on' can be a synonym of 'visit').
'one area in' becomes 'ia' (I can't explain this - if you can you should believe this answer much more).
'calledon' with 'l' taken away is 'caledon'.
'caledon'+'ia'='CALEDONIA'
Can you help me to learn more?
(Other definitions for caledonia that I've seen before include "Old poetic name for Scotland" , "forgotten British region" , "Latin name for northern Britain" , "Roman name for Scotland" , "Lat. name for N. Britain" .)