NEED HELP ON TOP LEFT CORNER
1AC One gets uesd to surf crests, common occurrences in summer and winter (7) ??O?S??
1DN By Torquemada's held by scholarly monk (6) ????D? 13AC Stop group of plotters (note rifle) that hopes to find new remedies(4,4,8,) ??E?, C???, R?E?A?C? 4DN Very rich crowd around sheet-making plant (7, 4) ??????G ?I?L MANY THANKS