Intimacy of quiet road by a loch (9)
I believe the answer is:
closeness
'intimacy' is the definition.
(synonyms)
'quiet road by a loch' is the wordplay.
'quiet road' becomes 'close' (close is a type of street).
'by' says to put letters next to each other.
'a loch' becomes 'ness' (Loch Ness in Scotland).
'close'+'ness'='CLOSENESS'
'of' is the link.
(Other definitions for closeness that I've seen before include "State of being very near" , "sense of unity" , "Proximity" .)