S_Pugh, High-value as in scrabble. If you have the hard copy, turn to page 53 for a key of values.
I now have a full grid but don't see how row 11 works. If 11a is PEE, then there isn't enough room in the row for both the other answers...if 11c is PETE, then it should be the first 11 clue, not the last.