Seize, entrap (5)
I believe the answer is:
catch
This clue is a double definition.
'seize' is the first definition.
(I know that seize is a more specific form of the action hook)
'entrap' is the second definition.
(thesaurus)
(Other definitions for catch that I've seen before include "Desirable husband; unforeseen problem" , "Grab; disadvantage" , "Fly in the ointment" , "secure" , "Understand" .)