Drinks to summer garment (6)
I believe the answer is:
shorts
This clue might be a double definition.
'drinks' is the first definition.
'summer garment' is the second definition.
'shorts' can be an answer for 'garment' (shorts is a kind of garment). I am not sure about the 'summer' bit.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for shorts that I've seen before include "Garment" , "Trousers that end at or above the knee" , "Item of clothing; drinks of spirit" , "Reduced trousers" , "Cut-off trousers" .)