To make a clipping path in Illustrator:
Open your document in Illustrator.
Use the Pen Tool (shortcut: P) to draw a path around the object you want to isolate.
Select both the object and the path you’ve drawn.
Right-click and choose Make Clipping Mask, or go to Object > Clipping Mask > Make.
The clipping path will hide everything outside it. It will reveal only the object you isolated.