Drink which has been "good for you” since the 1920s (8)
I believe the answer is:
guinness
'drink' is the definition.
(Guinness is a type of stout)
'has been good for you since the 1920s' is the wordplay.
I cannot really see how this works, but
'good' could be 'g' (abbreviation) and 'g' is located in the answer.
'you' could be 'u' (commonly used in online communication) and 'u' is present in the answer.
'1920s' could be 's' and 's' is found in the answer.
The remaining letters 'innes' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'which' is the link.
Can you help me to learn more?
(Other definitions for guinness that I've seen before include "Dark drink said to be good for you" , "Irish stout" , "A bitter stout" , "The black stuff" .)