Glassy varnish (6)
I believe the answer is:
enamel
(Other definitions for enamel that I've seen before include "Crown Protector?" , "protective coat" , "Hard shiny coating on surface" , "Shiny layer on surface" , "Coating for a tooth" .)
I believe the answer is:
enamel
(Other definitions for enamel that I've seen before include "Crown Protector?" , "protective coat" , "Hard shiny coating on surface" , "Shiny layer on surface" , "Coating for a tooth" .)