Thick wooden board (5)
I believe the answer is:
plank
(Other definitions for plank that I've seen before include "item in political party's programme" , "Policy; board" , "Strip of timber" , "Building timber" , "Wooden board" .)
I believe the answer is:
plank
(Other definitions for plank that I've seen before include "item in political party's programme" , "Policy; board" , "Strip of timber" , "Building timber" , "Wooden board" .)