One too sozzled to spell 'red ink' right? (7)

I believe the answer is:

drinker

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

'spell red ink right?' is the wordplay.
'spell' indicates anagramming the letters (I've seen 'spells' mean this (I've seen this in other clues)).
'right?' becomes 'r' (common abbreviation).
'red'+'ink'='redink'
'redink' with letters rearranged gives 'drinke'.
'drinke'+'r'='DRINKER'

'to' acts as a link.

Can you help me to learn more?

(Other definitions for drinker that I've seen before include "Inebriate" , "Tippler" , "Consumer of liquid, probably alcohol" , "Imbiber, toper" .)

I've seen this clue in the Evening Standard.

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