Implement to move left (6)
I believe the answer is:
shovel
'implement' is the definition.
(shovel is a kind of implement)
'move left' is the wordplay.
'move' becomes 'shove' (**).
'left' becomes 'l' (common abbreviation).
'shove'+'l'='SHOVEL'
'to' acts as a link.
(Other definitions for shovel that I've seen before include "Digging implement" , "Tool for lifting and carrying" , "''Don't forget your..., if you want to go to work'' (Christy Moore)" , "Scooper" , "Spade with a curved blade" .)