Soft drink for a glib type (8)
I believe the answer is:
smoothie
This could be a double definition.
'soft drink' is the first definition.
'smoothie' can be an answer for 'drink' (smoothie is a type of drink). I'm not certain of the 'soft' bit.
'glib type' is the second definition.
(I've seen this in another clue)
'for a' is the link.
Can you help me to learn more?
(Other definitions for smoothie that I've seen before include "Fruit pured with milk" , "Plausible person" , "Glib speaker" , "cold and thick" , "Thick, drink of pureed fruit" .)