Related Clues:

• Coat with Mexican dish
• Mexican rolled pancake with a filling
• Mollusc with firmly-closed shell
• Edible mollusc
• Mexican tortilla
• Bi-valve with firmly-closed shell
• One is as uncommunicative as a mollusc
• It's one-fifty in the morning, so shut up!
• This ought to shut up our racket
• Shelley might have shut up at 1.50 in the morning
• It's 1.50 in the morning, so shut up!
• One might shut up at one-fifty in the morning
• Seeing that it's one-fifty in the morning, it's all shut up
• It's one-fifty in the morning, so shut up
• In the sea one might shut up at one-fifty in the morning