4 Across - How to fight miserliness (4,3) ?a?? ???
11 Across - A need to include fifty covered in oil (6) A????
20 Across - Here you need to acknowledge defeat (4.2) ?i?e up
6 Down - Greeted in stony fashion ? (6) ??i???
7 Down - Unaccustomed to being new ? (6) ??u???