Dry-___ board (5)
I believe the answer is:
erase
(Other definitions for erase that I've seen before include "Do away with" , "Destroy recording on audio or video tape" , "Blank out" , "Remove permanently" , "Blot out" .)
I believe the answer is:
erase
(Other definitions for erase that I've seen before include "Do away with" , "Destroy recording on audio or video tape" , "Blank out" , "Remove permanently" , "Blot out" .)