If you have extremely steady hands, a bright light and a good loupe (10X Tripplet minimum, glass not plastic) you can usually "pick out" the offending material or deformed vinyl wall. I have done this on several occasions. My tool of choice is usually a 24-26 gauge syringe needle, which has a very sharp point and a nice taper. Re-clean the LP after surgery. Good luck.
Vinyl pops and clicks: Can they be eliminated??
I have a Mobile Fidelity issue of "Close to the Edge" by Yes. The LP is at least 20 years old or more. Always help up well until today. There is now a skip that repeats over and over. Other pops and clicks don't interrrupt the flow of music like this one. I checked several things: cartridge, tracking, stylus, and also damped cleaned the LP, but it continued to skip repeat in that one place. It may be time to retire this piece of vinyl, but if I could inexpensively repair or correct that skip, it would be great. However,I intend to replace this album with the Japanese SHM-CD import when the reissue is available again. All advice welcome