One running out of clothes? (8)
I believe the answer is:
streaker
'one running out of clothes?' is the definition.
(person who runs naked in public)
This is all the clue.
(Other definitions for streaker that I've seen before include "Exhibitionist spectator" , "Someone running naked in a public place" , "One making a dash without clothes" , "when not having a stitch" , "Naked runner" .)