Non-drinker getting round in? Whisky? (3)
I believe the answer is:
tot
'in? whisky?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'non-drinker getting round' is the wordplay.
'non drinker' becomes 'tt' (Teetotaller abbreviation).
'getting' is an insertion indicator.
'round' becomes 'o' (round can mean a round object).
'tt' placed around 'o' is 'TOT'.
Can you help me to learn more?
(Other definitions for tot that I've seen before include "Small baby" , "Add up like infant" , "Small measure for a small child" , "Child; measure of spirits" , "Palindrome for small child" .)