Stuck on 17a. Senseretreat for example, brought about by champion defending north vigorously 4 1 9 I've got ??T? ? ?E?G????? hints please Is it an anagram of *sense retreateg?*
Leapy,
You need alternative words for sense and retreat, then eg reversed, plus another word for champion encompassing "n " for "new".
Those are the best hints I can give......