Start game removing trick (9)
I believe the answer is:
stratagem
'trick' is the definition.
(thesaurus)
'start game removing' is the wordplay.
'removing' indicates anagramming the letters (moving the letters again).
'start'+'game'='startgame'
'startgame' is an anagram of 'STRATAGEM'.
(Other definitions for stratagem that I've seen before include "A cunning plan or piece of trickery" , "Devious ploy" , "Clever scheme" , "Manoeuvre - Ma's target (anag)" , "Cunning plot" .)