Crossword Genius

One too young to start tippling (3)

Ross

I believe the answer is:

tot

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

'one too young' is the definition.
I can't judge whether this definition defines the answer.

'to start tippling' is the wordplay.
'start' says to take the initial letters.
The first letter of 'tippling' is 't'.
'to'+'t'='TOT'

Can you help me to learn more?

(Other definitions for tot that I've seen before include "Arithmetic for infant" , "Small quantity of alcoholic drink" , "Small amount of spirits" , "Nip" , "Small measure for a small child" .)

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