Braces made of tree trunks (6)
I believe the answer is:
cabers
'tree trunks' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe there's a link between them I don't understand?
'braces made' is the wordplay.
'made' indicates anagramming the letters.
'braces' is an anagram of 'CABERS'.
'of' is the link.
Can you help me to learn more?
(Other definitions for cabers that I've seen before include "Poles" , "They're tossed in Scotland" .)