Wall opening (6)
I believe the answer is:
window
(Other definitions for window that I've seen before include "Transparent part of envelope" , "Transparent panel of glass" , "See 1 down" , "time still available" , "Shop display area" .)
I believe the answer is:
window
(Other definitions for window that I've seen before include "Transparent part of envelope" , "Transparent panel of glass" , "See 1 down" , "time still available" , "Shop display area" .)