Put into service (4)
'put into service' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for use that I've seen before include "Profit" , "Employ - advantage" , "Put to work" , "Consume; deploy" , "Employ; consume" .)
'put into service' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for used that I've seen before include "No longer pristine" , "Employed - exploited" , "Scottish expert" , "Sued, having been employed" , "Second-hand; consumed" .)