Implement (4)
'implement' is the definition.
(tool is a kind of implement)
This is all the clue.
(Other definitions for tool that I've seen before include "Instrument, implement" , "Hand implement" , "Person used by another" , "Gun" , "Drive motor skilfully" .)
'implement' is the definition.
(utensil is a kind of implement)
This is all the clue.
(Other definitions for utensil that I've seen before include "Mandolin, perhaps" , "vessel" , "A kitchen instrument or container" , "Implement for practical use" , "Useful tool" .)
'implement' is the definition.
(synonyms)
This is all the clue.
(Other definitions for apply that I've seen before include "Administer" , "Send off (form, etc)" , "Put to use" , "Sue" , "Ask for, a position perhaps" .)