Small band of hair? (7)
I believe the answer is:
ringlet
This clue is a double definition.
'small band' is the first definition.
'hair?' is the second definition.
(ringlet is a kind of hair)
'of' is the link.
(Other definitions for ringlet that I've seen before include "twist of sorts?" , "Little curl" , "A curl - kind of tingler" , "Cluster of hair" , "Curled lock of hair" .)