Bend 8 for accessory (7)
I believe the answer is:
hairpin
'bend' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for hairpin that I've seen before include "Lock-keeper" , "Fastener for tresses" , "A very sharp bend, u-shaped" , "U-shaped fastener" , "associated with locks" .)