Surgical implement (6)
(Other definitions for lancet that I've seen before include "Surgeon's instrument and journal" , "provided cuttings" , "Surgical instrument" , "Cutter for a surgeon" , "Surgeon's tool" .)
'surgical implement' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for scalpel that I've seen before include "Surgeon's instrument" , "sharp knife" , "One making cuts in hospital" , "Operator may use this" , "Dissecting knife" .)