German bolted down mountain pass (4)
I believe the answer is:
gate
'down mountain pass' is the definition.
The answer and definition can be both related to change as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?
'german bolted' is the wordplay.
'german' becomes 'g' (abbreviation**).
'bolted' becomes 'ate' (I've seen this before).
'g'+'ate'='GATE'
Can you help me to learn more?
(Other definitions for gate that I've seen before include "Frame for closing an entrance" , "Five-bar opening?" , "Means of entry" , "Doorway" , "Portal" .)