Top meal, no starter, second in test (9)

I believe the answer is:

uppermost

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

'top' is the definition.
(similar in meaning)

'meal no starter second in test' is the wordplay.
'meal' becomes 'supper' (supper is a kind of meal).
'no starter' means to remove the first letter.
'second in test' becomes 'most' (I am not sure about this - if you are sure you should believe this answer much more).
'supper' with its first letter taken away is 'upper'.
'upper'+'most'='UPPERMOST'

Can you help me to learn more?

(Other definitions for uppermost that I've seen before include "At or nearest to the top" , "on top of the pile" , "On top or first in the mind" , "Highest or most prominent" , "Support me being on top" .)

I've seen this clue in The Sun.

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.