Suggest dressing Oscar and Carol in regal fashion (10)

I believe the answer is:

imposingly

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

'suggest dressing oscar and carol in regal fashion' is the definition.
I can't judge whether this definition defines the answer.

'suggest dressing oscar and carol' is the wordplay.
'suggest' becomes 'imply' (implying is a kind of suggesting).
'dressing' means one lot of letters goes inside another (inserted letters are dressed or clad in others).
'oscar' becomes 'O' (phonetic alphabet: alpha, bravo, charlie etc.).
'and' is a charade indicator (letters next to each other).
'carol' becomes 'sing' (carol can mean to sing carols).
'o'+'sing'='osing'
'imply' placed around 'osing' is 'IMPOSINGLY'.

Can you help me to learn more?

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.