A drink mixed and swallowed by the bashful (6)
I believe the answer is:
shandy
'a drink' is the definition.
(shandy is a kind of drink)
'and swallowed by the bashful' is the wordplay.
'swallowed by' is an insertion indicator.
'the bashful' becomes 'shy' (I've seen this before).
'and' placed within 'shy' is 'SHANDY'.
'mixed' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for shandy that I've seen before include "Drink made of beer and lemonade" , "Beer and lemonade mix" , "Alcohol" , "mixed drink" , "A misture of ale and lemonade" .)