Mum and dad having drinks? (6)
I believe the answer is:
couple
'mum' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for couple that I've seen before include "Link together - say two married people" , "Two of a kind" , "Unite" , "Bonnie and Clyde, say" , "Duo, brace" .)