Wind towers use winds (9)
I believe the answer is:
souwester
'wind' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'towers use winds' is the wordplay.
'winds' is an anagram indicator (the letters wind around).
'towers'+'use'='towersuse'
'towersuse' anagrammed gives 'SOUWESTER'.
Can you help me to learn more?
(Other definitions for souwester that I've seen before include "Waterproof hat (3'9)" , "It helps keep the salt dry" , "Mariner's waterproof hat" , "Waterproof hat with wide slanting brim" .)