One who makes an impression as a craftsman (6)
I believe the answer is:
etcher
'one who makes an impression' is the definition.
(someone who etches an impression)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for etcher that I've seen before include "One sharply scores" , "Artist such as Rembrandt" , "One makes a deep impression" , "Cutter" , "one who uses acid" .)