C.U. monger duly destroyed? That's just what I am!
Level 1:"C.U. monger duly" is an anagram of "curmudgeonly"
Level 2: "Greedy kite" = curmudgeonly
Level 3 (for those who remember): some time ago I was attacked on this forum by someone who seriously thought I was trying to "sell" a Cambridge education, so of course I have felt suitably "destroyed" ever since...