Drink drop of liquid, right away (3)
I believe the answer is:
tea
'drink' is the definition.
(tea is a kind of drink)
'drop of liquid right away' is the wordplay.
'drop of liquid' becomes 'tear'.
'right' becomes 'r' (common abbreviation).
'away' indicates named letters should be taken away.
'tear' with 'r' taken out is 'TEA'.
(Other definitions for tea that I've seen before include "For Japanese ceremony" , "Hot drink" , "Refreshment" , "Principally" , "Strangely, one may eat this drink" .)