Ascend a mountain (5)
I believe the answer is:
climb
(Other definitions for climb that I've seen before include "Ascend, escalate" , "What mountaineer does" , "showing the way up" , "Ascend - ascent" , "increase" .)
I believe the answer is:
climb
(Other definitions for climb that I've seen before include "Ascend, escalate" , "What mountaineer does" , "showing the way up" , "Ascend - ascent" , "increase" .)