Imprint vividly (4)
I believe the answer is:
etch
'imprint vividly' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for etch that I've seen before include "Carve (design) on a surface" , "Make picture by engraving metal" , "Carve into metal with acid" , "Engrave (glass/metal)" , "Use acid to design on metal or glass" .)