The most common and most likely answer to this crossword clue is the 5 letter word DRAYS
D
R
A
Y
S
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The straight part
We know that "Timber sledges" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case timber sledges = drays.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 DRAYS mean?
DRAYS noun- A low horse-drawn cart, often without sides, and used especially for heavy loads.
- A kind of sledge or sled.
- A squirrel’s nest, built of twigs in a tree.
- A possum’s nest, built of twigs and leaves in a tree.