Old garment from Pacific islands, never new (4)

I believe the answer is:

toga

I'm a little stuck... Click here to teach me more about this clue!

'old garment' is the definition.
(garment worn in ancient Rome)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for toga that I've seen before include "Got a cloak for an old Roman" , "Sheet draped round Roman" , "Roman male garb" , "Roman raiment" , "Ancient Roman garment" .)

I've seen this clue in The Times.

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.