Horse goad (4)
I believe the answer is:
spur
(Other definitions for spur that I've seen before include "'Urge, goad (4)'" , "Goad as for use by horse-rider" , "Impetus" , "Spike on a horse-rider's boot" , "offer encouragement" .)
I believe the answer is:
spur
(Other definitions for spur that I've seen before include "'Urge, goad (4)'" , "Goad as for use by horse-rider" , "Impetus" , "Spike on a horse-rider's boot" , "offer encouragement" .)