The most common and most likely answer to this crossword clue is the 7 letter word TIMBERS
I've seen this crossword clue in The Guardian
T
I
M
B
E
R
S
Buddy explains!

The straight part
We know that "stuff from woods" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case stuff from woods = timbers.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does TIMBERS mean?
TIMBERS noun- Trees in a forest regarded as a source of wood.
- (outside North America) Wood that has been pre-cut and is ready for use in construction.
- A heavy wooden beam, generally a whole log that has been squared off and used to provide heavy support for something such as a roof.
- Material for any structure.
- The wooden stock of a rifle or shotgun.
- A certain quantity of fur skins (as of martens, ermines, sables, etc.) packed between boards; in some cases forty skins, in others one hundred and twenty. Also timmer, timbre.
- To fit with timbers.
- To construct, frame, build.
- To light or land on a tree.
- To make a nest.
- To surmount as a timber does.