Run naked in a public place (6)
I believe the answer is:
streak
'run naked in a public place' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for streak that I've seen before include "Run nude like skater" , "Long thin mark" , "Move very fast; thin strip" , "run out of gear" , "Sudden flash - run naked in public" .)