Quiet and young? This drink's allowed perhaps (6)
I believe the answer is:
shandy
'this drink's allowed perhaps' is the definition.
'shandy' can be an answer for 'drink's' (shandy is a kind of drink). I'm not sure about the remainder of the definition.
'quiet and young?' is the wordplay.
'quiet' becomes 'sh' (both can be said to tell someone to be quiet).
'young?' becomes 'y'.
'sh'+'and'+'y'='SHANDY'
Can you help me to learn more?
(Other definitions for shandy that I've seen before include "Drink of ale and lemonade 96)" , "mixed drink" , "Weakly-alcoholic drink" , "A misture of ale and lemonade" , "Beer/lemonade drink" .)