I am looking at the same quiz. For "Lest we forget" I had "must promise", but like you with "make promise", I am not convinced. I had Pari Mutuel and Mercator's Projection
I am struggling with other clues, including one from the same section: "Abandoned by the somewhat incandescent" (5,6). As with the other clues, the two words of the answer must begin M and P (or P and M).
Can anyone help?