Terry,
Take your 1911 , make sure it's unloaded

. C*ck ( if I use the "o" it censors the word) the hammer. Now press the hammer forward very firmly with your off-hand thumb, while simultaneously pulling the trigger.
Keep doing this several times, then try the trigger for smoothness. Keep repeating this action, and you will begin to notice that the trigger will get smoother with an even crisp break to it. Doing this will "de-burr" the sear and trigger. Also, the more you shoot it the better it gets.
Ron