Early reader (6)
I believe the answer is:
primer
(Other definitions for primer that I've seen before include "introductory book" , "introduction" , "Elementary text book" , "device for detonating charge" , "First coat - book" .)
I believe the answer is:
primer
(Other definitions for primer that I've seen before include "introductory book" , "introduction" , "Elementary text book" , "device for detonating charge" , "First coat - book" .)