Is the leaf spring on the trigger bar, but if the bar is not coming up you should not get a click.
Check to see if the Sear adjusting screw is turned way in ( the screw in rear top of the frame) , if that is way out the sear will not reset
It is usually just lower than flush by a hair, people sometimes mess with this and go too far. part # 10480 on the standard Hi Standard breakdown
But with out looking at it I am not sure.
You have parts breakdown picture? I could post one if you don't.
Take the slide off and the left hand grip and the side plate , watch you have the spring in place and #### it and pull the trigger and see what happens, is the sear dropping the hammer?
DO NOT LET THE HAMMER HIT THE FRAME , use your thumb to stop it, as it is hard as hell on things .
Good luck Only other thing I can think of would be a hammer spring, But I have never had one of then go.
the hammer should be hard to ####. on my Victor ,I have a hell of a time pulling the slide back with the hammer down, but I am getting old and weak, I guess.
I do have the trigger bar springs if you don't have one, easy to lose, when you take the right hand grip off, the slide lock can fall out and that itty bitty spring can go, and they are hard to find, I am out of them. That is one of the things that Hi Standard could have done better.
BTW, anyone have a spare trigger laying around??????????????????????????????????????