Painter's layer (6)
I believe the answer is:
primer
(Other definitions for primer that I've seen before include "Solitary" , "introductory book" , "Preparatory coat of paint" , "Basic book; undercoat" , "First coat - book" .)
I believe the answer is:
primer
(Other definitions for primer that I've seen before include "Solitary" , "introductory book" , "Preparatory coat of paint" , "Basic book; undercoat" , "First coat - book" .)