Secluded narrow valley (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
glen
'secluded narrow valley' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for glen that I've seen before include "Depression in Scotland" , "Narrow, deep mountain valley" , "Scottish mountain valley" , "Campbell perhaps" , "Scottish or Irish valley" .)