I'd guess its a worn ball joint on the bottom arm.

Dont worry yourself too much - but continue looking until you find out for sure what it is.

If you have a decent set of tools and a bit of common sense then cars are just a big bag of nuts and bolts and replacing like for like is easy. Always worth having a go yourself (maybe with some local help) to save cash

FWD cars driveshafts have about 1" to 1.5" play in the tripod joints if thats what your thinking is movement you will feel it if you disconnect the bottom arm