Choppers seen out in middle of night? (8)
I believe the answer is:
dentures
'choppers' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Perhaps there's an association between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for dentures that I've seen before include "Set of false teeth" , "Sets of artificial teeth." , "Underset in teeth" .)