Crossword Genius

Small sheep that is dozier than all the others? (9)

Ross

I believe the answer is:

stupidest

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

'dozier than all the others?' is the definition.
I can't judge whether this definition defines the answer.

'small sheep that is' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'sheep' becomes 'tup' (tup is a kind of sheep).
'that is' becomes 'id est' ('that is' in Latin).
's'+'tup'+'idest'='STUPIDEST'

Can you help me to learn more?

(Another definition for stupidest that I've seen is " most foolish".)

I've seen this clue in The Times.
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