create alias clock_eyed -> clock_eyes
For consistency with other eye tags, such as heart_eyes, blue_eyes, glowing_eyes, etc.
Relatedly, there is also inconsistency between the *_eyed tags (cross_eyed and wall_eyed) and the *-eyed tags (wide-eyed and one-eyed). wide_eyed and one_eyed are already aliased to wide-eyed and one-eyed respectively, so there's that for precedent.