Smoothness, so to speak (6)
I believe the answer is:
polish
(Other definitions for polish that I've seen before include "Buff up - foreign language" , "Rub until shiny" , "Rub - refinement" , "Rub to a gloss" , "Shine for a European" .)
I believe the answer is:
polish
(Other definitions for polish that I've seen before include "Buff up - foreign language" , "Rub until shiny" , "Rub - refinement" , "Rub to a gloss" , "Shine for a European" .)