Confer knighthood on (3)
I believe the answer is:
dub
'confer knighthood on' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dub that I've seen before include "Label, name" , "Add sound effects or music" , "Add a soundtrack in a different language" , "Raise to knighthood" , "Ennoble" .)