Answer: tieback

AnswerCrossword Clue
TIEBACKDrape fastener
TIEBACKCurtain restraint
TIEBACKSecure behind one's head, as long hair
TIEBACKRestrain, as long hair
TIEBACKCurtain holder
TIEBACKDrapery sash.
TIEBACKCurtain-draping device
TIEBACKCurtain feature
TIEBACKCurtain accessory
tiebacka loop for holding a curtain to one side