Why won’t the engine start?

Im having trouble getting my Cub Cadet LT1018 to start.

It used to be that the engine cranked slowly but would fire up...but if it didnt start fairly quickly I would have to charge the battery.

However, for the last week when I try to start the mower it just clicks. The digital meter on the dash was reading 9.5 when I would turn the key. Now the meter on the dash just kind of fades to nothing.

My voltage meter is reading that the battery is fully charged and good. The solenoid is clicking...I checked it with a circuit tester and both sides of solenoid light up when key is turned. The positive wire into starter also lights up when I check it with circuit tester and key on.

I‘m certainly no small engine repairman. Anyone able to provide me with some guidance? Is it possible the starter is bad?

Thanks