Related Clues:

• Window pane
• Goblet
• Milk container
• Water holder
• Lens material
• Drinking vessel
• ___ jaw (pug's liability)
• Window insert
• Part of a place setting
• It might be stained
• Beaker
• ''The ___ Menagerie''
• Schooner, e.g.
• Calm water metaphor
• You can see right through it