I'm running into the 'as I try to do these, I keep coming up with more of them syndrome'...
shinless either way, eh? and the barely/collapsed issue i get, too. maybe collapsed as in fell apart or better perhaps - disintegrated. still a stretch i agree. a little riddling license to make the clues somewhat sensible is sometimes in order (as is punctuation, etc.). and am of course thankful for your munificent vocabulary. nicely figured, Y-san.
and correct again, of course. the two r's kept me thinking i had messed up this clue.