Retiring outside with drink (6)
I believe the answer is:
shandy
'drink' is the definition.
(shandy is a kind of drink)
'retiring outside with' is the wordplay.
'retiring' becomes 'shy' (I've seen this in other clues).
'outside' indicates putting letters inside.
'with' becomes 'and' (I've seen this before).
'shy' going around 'and' is 'SHANDY'.
(Other definitions for shandy that I've seen before include "Beer and lemonade mix" , "Weakly-alcoholic drink" , "Beer and lemonade mixture" , "Light beer" , "Beer/lemonade drink" .)