Thanks for lending me your clothes.
I have trouble deciding which clothes to wear, Japanese-style or Western-style.
You should get dressed really quickly or you’ll be late for school.
Western style clothes is just Western clothing (or Western style clothes). But nowadays, because Japanese people wear Western clothing all the time, we use it to just mean clothes. We're talking things that aren't kimonos, etc.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.