Timber port? (4)
I believe the answer is:
deal
This clue might be a double definition.
'timber' is the first definition.
(I know that deal is a type of board)
'port?' is the second definition.
Both the definition and answer are adjectives. Perhaps you can see a link between them that I can't see?
Can you help me to learn more?
(Other definitions for deal that I've seen before include "Distribute (cards); pine or fir timber" , "Business transaction of timber." , "Timber - trade" , "Soft wood or slang bargain" , "Sawn wood" .)