Possible Clues:

• Small amount of drink mopped up by a tissue, falsely? That's an understatement
• Literary understatement
• Figure of speech child found in stories — that's an understatement
• Trope of two different books on tablets
• Tales about drink wherein not a little is a lot?
• Figure of speech unusual in TS Eliot
• Understatement no mature person prevaricates about
• Rhetorical understatement
• Might such rhetoric be no great shakes?
• "Not too shabby" and "no ordinary love," e.g