Set out, in a general way, to use force (6)
I believe the answer is:
deploy
'set' is the definition.
(I know that deploy is a more specific form of the action position)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for deploy that I've seen before include "Spread out and put in position" , "Spread out for battle" , "Put into use" , "Put into action" , "Dispose, set out" .)