Cow up by Scottish loch (7)

I believe the answer is:
overawe
'cow up by scottish loch' is the definition.
'overawe' can be an answer for 'cow' (synonyms). I am not certain of the 'up by scottish loch' bit.
'cow up by' is the wordplay.
'cow' becomes 'awe' (I've seen this in another clue).
'up' becomes 'over'.
'by' means one lot of letters go next to another.
'awe' put after 'over' is 'OVERAWE'.
Can you help me to learn more?
(Other definitions for overawe that I've seen before include "Inhibit with fear or wonder" , "Subdue, creating fear and wonder" , "Make weak or helpless with dominating presence" , "put off" , "Daunt, intimidate" .)
