A party backing wrong young dandy (6)

I believe the answer is:

adonis

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

'young dandy' is the definition.
'adonis' can be an answer for 'dandy' (I've seen this before). I am not certain of the 'young' bit.

'a party backing wrong' is the wordplay.
'party' becomes 'do' (do is a kind of party).
'backing' says the letters should be written backwards.
'wrong' becomes 'sin' (wrong can mean a sin or crime).
'sin' back-to-front is 'nis'.
'a'+'do'+'nis'='ADONIS'

Can you help me to learn more?

(Other definitions for adonis that I've seen before include "dandy" , "ideal man" , "Extremely attractive young man from Greek mythology" , "Hunk" , "Handsome Gk. youth" .)

I've seen this clue in the Sydney Morning Herald.

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.