A hairy turn (7)
I believe the answer is:
ringlet
'a hairy turn' is the definition.
The answer and definition can be both shapes as well as being singular nouns.
Maybe there's a link between them I don't understand?
This is the entire clue.
Can you help me to learn more?
(Other definitions for ringlet that I've seen before include "Hair feature" , "Curl, of an Irish dancer say" , "Long curl of hair" , "A curl - kind of tingler" , "twist of sorts?" .)