Bashful about also getting a drink
I believe the answer is:
shandy
'a drink' is the definition.
(shandy is a kind of drink)
'bashful about also' is the wordplay.
'bashful' becomes 'shy' (bashful means shy or reserved).
'about' means one lot of letters goes inside another.
'also' becomes 'and' (I've seen this before).
'shy' going around 'and' is 'SHANDY'.
'getting' is the link.
(Other definitions for shandy that I've seen before include "Lemonade-beer drink" , "Light beer" , "Beer-lemonade mix" , "mixed drink" , "Weakly-alcoholic drink" .)