Slap cuffs on
I believe the answer is:
arrest
'slap cuffs on' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for arrest that I've seen before include "Take into custody as police do" , "Nab" , "Bring to a standstill" , "Stop (on suspicion)" , "Stop - take into custody" .)