Small drinking vessel (6)
I believe the answer is:
noggin
(Other definitions for noggin that I've seen before include "Small amount of liquor" , "Small measure of spirits or mug" , "Head - tot" , "Small mug - wooden cup" , "alcoholic drink?" .)
I believe the answer is:
noggin
(Other definitions for noggin that I've seen before include "Small amount of liquor" , "Small measure of spirits or mug" , "Head - tot" , "Small mug - wooden cup" , "alcoholic drink?" .)