Duck left out for afternoon munchies (3)
I believe the answer is:
tea
'afternoon munchies' is the definition.
I can't tell whether this defines the answer.
'duck left out' is the wordplay.
'duck' becomes 'teal' (teal is a type of duck).
'left' becomes 'l' (common abbreviation).
'out' is a deletion indicator.
'teal' with 'l' removed is 'TEA'.
'for' is the link.
Can you help me to learn more?
(Other definitions for tea that I've seen before include "US party" , "going to pot?" , "Assam or Darjeeling, for example" , "Strangely, one may eat this drink" , "tips for the cup?" .)