Set in motion (4)
'set in motion' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for activate that I've seen before include "Prompt" , "Give life to" , "Launch" , "Start working" , "Start, mobilise" .)
'set in motion' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stir that I've seen before include "Stimulate; prison" , "Uproar" , "Mix round" , "created by an agitator?" , "Move; wake" .)
'set in motion' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for move that I've seen before include "Depart" , "Change address" , "change position on board" , "Shift" , "Change residence; propose formally" .)
'set in motion' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for start up that I've seen before include "Newly-established business" , "Newly created business" , "newly formed company" , "fresh concern" , "Newly-formed company" .)
'set in motion' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for trigger that I've seen before include "Pull it to discharge gun" , "Roy Rogers' horse" , "arm with this?" , "Activating device" , "Start" .)
'set in motion' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for actuate that I've seen before include "Switch on" , "Put into effect" , "Trigger off, energise" , "get going" , "Put into action" .)
'set in motion' is the definition.
(launching is a kind of setting in motion)
This is the entire clue.
(Other definitions for launch that I've seen before include "publicity event" , "Large motorboat" , "Inaugurate" , "Set up - found" , "Boat - set in motion" .)
(Other definitions for stir up that I've seen before include "Cause or provoke trouble" , "Fire in" , "Instigate" , "Get excited" , "Foment (trouble)" .)
(Other definitions for lead off that I've seen before include "Begin the dance" , "Initiate an action" , "Begin, start" , "Make a start" .)