Stand a drink to almost all the soft drink drinkers (8)
I believe the answer is:
teetotal
'almost all the soft drink drinkers' is the definition.
I can't tell whether this definition defines the answer.
'stand a drink to' is the wordplay.
'stand' becomes 'tee' (I've seen this in other clues).
'a drink to' becomes 'total' (I can't explain this - if you can you should give a lot more credence to this answer).
'tee'+'total'='TEETOTAL'
Can you help me to learn more?
(Other definitions for teetotal that I've seen before include "Pledged to abstain from alcohol" , "Abjuring alcohol" , "Not touching a drop" , "Abstinent from alcohol" , "refusing to drink" .)