Nut from a horse-chestnut tree (6)
I believe the answer is:
conker
(Other definitions for conker that I've seen before include "Chestnut on a string" , "Seed of horse chestnut" , "Nut of the horse chestnut tree" , "Chestnut fruit" , "hard nut" .)
I believe the answer is:
conker
(Other definitions for conker that I've seen before include "Chestnut on a string" , "Seed of horse chestnut" , "Nut of the horse chestnut tree" , "Chestnut fruit" , "hard nut" .)