Crossword Genius

Extremely concise celebration of cheese? (8)

Ross

I believe the answer is:

briefest

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

'extremely concise celebration of cheese?' is the definition.
I can't judge whether this defines the answer.

'concise celebration of cheese?' is the wordplay.
'concise' becomes 'brief' ('brief' can be similar in meaning to 'concise').
'celebration of cheese?' becomes 'est' (I can't explain this - if you can you should believe this answer much more).
'brief'+'est'='BRIEFEST'

Can you help me to learn more?

(Other definitions for briefest that I've seen before include "Extremely short" , "Least lengthy" , "Most perfunctory" , "over most quickly?" , "Finished first" .)

I've seen this clue in The Telegraph.
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