"Close" and "Clothes" sound the same in my ears. Is your pronunciation different? Did you know it through the context? I'm curious about it.
As a British English native speaker, there are usually two distinct ways to pronounce close.
I am close to the train station
close as an adjective or noun is pronounced with a ssss sound, clossssse.
Close the door please.
close as a verb is pronounced with a zzzz sound, clozzzze.
I find that foreign speakers often pronounce clothes as two syllables, often but not always based on the word cloth, which is pronounced differently to close in that the O sound is different. Cloth has an O sound like the first letter of 'on' but clothes has an O sound like the word 'oh'.
Spoken normally, clothes contains the th sound. But when spoken quickly, I find it is pronounced identically to the second close (cloze).
Obviously, this can likely vary from country to country and between regional accents.