Gallons swallowed in George's house — might this result? (8)
I believe the answer is:
hangover
'this result?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'gallons swallowed in george's house' is the wordplay.
I cannot really see how this works, but
'gallons' could be 'g' (abbreviation) and 'g' is found in the answer.
'house' could be 'hanover' (House of Hanover, European royal house) and 'hanover' is located in the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'might' is the link.
Can you help me to learn more?
(Other definitions for hangover that I've seen before include "Headache from drink" , "result of over-indulgence?" , "After-effects of excessive drinking" , "Sick feeling the morning after the night before" , "Morning-after problem" .)