Disconcerted at being dislodged from the saddle (6)
I believe the answer is:
thrown
'disconcerted' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for thrown that I've seen before include "given up intentionally" , "Disconcerted, confused" , "Having been projected through the air" , "Rabindranath ---, Indian sage" , "Disconcerted; chucked" .)