Suffering upset stomach - fine wine can be like that (4)
I believe the answer is:
oaky
'suffering upset stomach fine wine can' is the definition.
I know nothing about this answer so I can't judge whether this works.
'like that' is the wordplay.
I cannot quite understand how this works, but
'like' could be 'y' (similar in meaning) and 'y' is found within the answer.
The remaining letters 'oak' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'be' acts as a link.
Can you help me to learn more?
(Other definitions for oaky that I've seen before include "Firm" , "of wood here" .)