If you click and drag a selction from within the on-screen audio and then press Play then only the selcted audio will be played
As suggested earlier you may want tio creat a temporary range label - select audio and press Ctrl+B.
You may want to try using Timeline Quick Play or Scrubbing
see: http://manual.audacityteam.org/o/man/timeline.html#tqp
and: http://manual.audacityteam.org/o/man/scrubbing_and_seeking.html
There is a Tutorial in the Manual on Click & Pop removal: http://manual.audacityteam.org/o/man/tutorial_click_and_pop_removal_techniques.html
Hard to find clicks can sometimes be found more easily in Spectrogram view: http://manual.audacityteam.org/o/man/click_removal_using_the_spectrogram_view.html
And once you have foun d the click try using the Repair tool: http://manual.audacityteam.org/o/man/repair.html
Easiest of all and by far the quickest and most thorough is to invest in Brian Davies’ excellent ClickRepair software (I graduated to that from doing manual repairs like you)
See this sticky thread: https://forum.audacityteam.org/t/click-pop-removal-clickrepair-software/1933/1
If you have more than a few LPs to fix clicks on ClickRepair will be a good investment.
WC