Christopher of "Deathtrap” (5)
I believe the answer is:
reeve
'christopher of deathtrap' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for reeve that I've seen before include "Old magistrate or official" , "Mediaeval officer; ruff's mate" , "Old judge" , "Chief magistrate of a district" , "Steward who told a Tale" .)