Answer:

mounted

AnswerCrossword Clue
MOUNTEDGot all up on
MOUNTEDOn horseback.
MOUNTEDReady for a ride.
MOUNTEDPart of R.C.M.P.
MOUNTEDSet up and ready for use.
MOUNTEDWent up.
MOUNTEDAffixed, as a picture
MOUNTEDRose