Yes olive oil can clog your pores especially if you use too much olive oil on your skin.
When olive oil is used on skin in moderation the olive oil will usually not clog your pores.
But if the olive oil is used too much on your skin then it could easily clog your pores.
I use olive oil on my skin about once or twice per month and I have never clogged my pores.
But if you use too much of the olive oil or use the olive oil on your skin too often then your skins pores can become clogged.
Olive Oil clogs pores sometimes because it's a heavier oil.
In some people the use of olive oil on their skin can even cause acne breakouts as well as cause a breeding ground for bacteria to grow.