Second person once without clothes (4)

I believe the answer is:

thou

'second person once' is the definition.
(historical second person pronoun)

'without clothes' is the wordplay.
'clothes' indicates a hidden word (the letters clothe the hidden word).
'THOU' is hidden within 'without'.

(Other definitions for thou that I've seen before include "You (obs.)" , "You (archaic, but still used in prayers)" , "Subject" , "Small measurement" , "Prominent pronoun of the King James Bible; the modern-day 'you'" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.