Light-colored beer (4,3)
'light-colored beer' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lager that I've seen before include "drink in the bar?" , "Light-coloured beer" , "A regal sort of drink" , "The drink could be regal" , "African camp" .)
(Another definition for pale ale that I've seen is " Drink".)