drippless stuffing box
One half of the face seal in your shaft seal is SS, the other half is plastic or graphite. The graphite or plastic side may have cracked. Tightening the hose clamp would have little or no effect in stopping the water. Alternatively, the hose could be split which might be difficult to see. The bad news is, a replacement part whether it be a hose or the face seal can only be installed by passing the drive shaft through it, haul the boat but read on.
Mine will leak if I happen to stand on the transmission and temporarily move it out of alignment with the shaft log. The way I stop it is by turning the transmission coupling 1-2 turns. The faces of the seal automatically align themselves again and voila no water!