Beaker (3)
'beaker' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for mug that I've seen before include "Large drinking vessel or slang victim" , "Grimace" , "In slang, a person easily deceived" , "Make a face" , "Idiot" .)
'beaker' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for cup that I've seen before include "McCarthy, Walker or Maguire" , "Chalice; trophy" , "Sort of cake" , "'There's many a slip 'twixt ... and lip.'" , "Award; mug" .)
(Other definitions for tumbler that I've seen before include "Machine for drying" , "that can clearly hold a drink" , "A glass; part of lock" , "Drinking glass or old acrobat" , "A large glass" .)