Kick off (5)
(Other definitions for start that I've seen before include "Opening - jump" , "Take the first step" , "Initiate" , "Outset" , "Begin with sudden movement of surprise" .)
'kick off' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for begin that I've seen before include "former Israeli Nobel peace prize winner" , "Clandestine, furtive" , "Israeli prime minister who shared the Nobel Peace Prize with President Sadat" , "Launch" , "Partly open" .)
'kick off' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for launch that I've seen before include "Begin (a project)" , "Establish" , "Fire (a rocket)" , "Send on course, ship or book" , "Set a vessel afloat, often with champagne" .)