Rowdy drunk driver admitting nothing (8)

I believe the answer is:

carouser

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

'rowdy drunk' is the definition.
'carouser' can be an answer for 'drunk' (thesaurus). I'm not certain of the 'rowdy' bit.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for carouser that I've seen before include "noisy drinker" , "this one will drink a lot" , "he does enjoy a drink" , "partygoer" , "He's having a wild time on the town" .)

I've seen this clue in The Guardian.

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.