According to an aspect of the present invention, there is provided a clip including: a flange to be abutting a panel having an attaching hole; and a leg portion to be inserted into the attaching hole. The leg portion includes: an engaging part; and a guide part connected thereto. The guide part include: a distal-end tapered part formed to be gradually reduced in an outer diameter toward an inserting direction of the leg portion; a base-end reversely tapered part formed to be gradually reduced in an outer diameter toward the opposite direction; and a diameter enlarged part formed therebetween to have an outer diameter largest among the guide part. The largest outer diameter of the diameter enlarged part is larger than that of a distal end part of the engaging part.