Poor bargain for untreated wood? (3,4)
I believe the answer is:
raw deal
This clue is a double definition.
'poor bargain' is the first definition.
(I've seen this before)
'untreated wood?' is the second definition.
(I've seen this before)
'for' acts as a link.
(Other definitions for raw deal that I've seen before include "Inequitable treatment" , "Poor bargain" , "Unjust arrangement" , "that's a bit rough" , "It's unfair treatment if you get one" .)