Hi Malone, I can’t recall seeing chump like that before, though l see now that the Clue Clinic, who I trust on this sort of thing, do list it as an advanced last letter indicator.
I'm thinking the first word contains "king" and "ace" in reverse order ("back"), and I suspect the last word is SEAT or REST...but I still can't figure out how to parse either possible solution.
TAKE A SEAT
If you move K to after E in Seat and A (single letter word) after S and read it in the reverse you will still get TAKE A SEAT (TAES A EKAT)