Hint 1: the four longest entries are thematic
Hint 2: JAB JEB ??? JOB JUB
Hint 3: I originally assigned this meta level 1 but bumped it up to 1.5 because the solution is a not-so-familiar term... so if you've never heard of the term before you probably uncovered this hint: 41-Across (as footwear) is meta-related
Hint 4: the fashion accessory in question is what you call the charms that you put on Crocs (easter egg alert: there are six clues that reference "charm")