From reader BKS:
Someone used "cladly dressed" in a comment to The Guardian, and it appears to be an up and coming 21st Century phrase.
A search of www.guardian.com didn't turn up any instances of "cladly".[Update — but thanks to Mark Meckes in the comments below, here it is:]
And as BKS noted, there are a few examples in recent books:
With nakedness we find quite often the opposite of what the revealer expects to accomplish: the girl cladly dressed receives attention she is seeking but at cost to how she is perceived
Some of the elders heard rumors that Nathaniel was watching television by himself and paying specific attention to programs that featured females who were cladly dressed.
Meanwhile it is thirty eight degrees outside and Pastor Angie is cladly dressed walking down Gordon Parks Avenue.
My son was making out with this cladly dressed girl — I didn't even know who she was!
We can find a larger number of examples in web forums, online reviews, etc. (though the count is not enormous):
[link] why do they have to fawn over these cladly dressed women
[link] I would post a link to it on YouTube but it contains swearing and *ahem* cladly dressed women so I didn't want to get in trouble.
[link] I like getting my coffee from here cause it tastes good and dont have to deal with cladly dressed hookers flirting for a tip!
[link] It ain't counted as a midlife purchase unless a tall cladly dressed blondie is sitting next to you.
The examples are scattered in geographical and social context, suggesting that this is the sort of mistake that pops up spontaneously from time to time. Presumably it's a garbled memory of "scantily clad", a phrase that involves two rare words often encountered together. Thus of the 278 instances of scantily in COCA, 201 are in the phrase "scantily clad"; this might lead someone to create the adverb "cladly", meaning (so to speak) "scantily cladly".