Mounted (7)
'mounted' is the definition.
('get on' can be a synonym of 'mount')
This is all the clue.
(Other definitions for got on that I've seen before include "Were friends" , "Proceeded" , "Boarded" .)
'mounted' is the definition.
('climb' can be a synonym of 'mount')
This is all the clue.
(Other definitions for climbed that I've seen before include "Ascended" , "rose" .)