Answer: spragged

AnswerCrossword Clue
spraggedto prop, support, or immobilize (a vehicle) by means of a sprag
spraggedpole or bar hinged to the rear axle of a cart or the like in such a way that it can brace the vehicle against a road to prevent it from rolling downhill
spraggedto slow a vehicle by means of a sprag or, sometimes, by bracing the feet against the ground
spraggedshort timber for propping up loose walls or spacing two sets