1 Across, Oedipus,say,missing most of benefit of modern finance (1-7) E-?T?K?N?
16 Down, Golfing item in play lifted to reach elevated position? (8) ?R?E?O??
18 Down, Animal's track getting attention on the radio (3,4) R?? ?E??
20 Down, Military leader's injuries done up in plaster (6) ???C??