Put in handcuffs (6)
I believe the answer is:
arrest
'put in handcuffs' 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 "Detain under suspicion of criminal behaviour" , "Take into legal custody" , "Land next to the sea" , "apprehend a law-breaker" , "Seize and take into custody" .)