Bookworms are tipsy serving up wine and a little Scotch (7)
I believe the answer is:
readers
'bookworms' is the definition.
(I've seen this before)
'are tipsy serving up wine and a little scotch' is the wordplay.
'tipsy' indicates an anagram.
'serving up' says the letters should be written backwards.
'wine' becomes 'red' (red is a type of wine).
'and' is a charade indicator (letters next to each other).
'a little' says to take the initial letters.
The first letter of 'scotch' is 's'.
'red' written backwards gives 'der'.
'are' anagrammed gives 'rea'.
'rea'+'der'+'s'='READERS'
(Other definitions for readers that I've seen before include "Senior lecturers" , "Checkers of proofs" , "Consumers of the written word" , "Bookish people" , "cheaters" .)