Completely bewildered by 17a 'That can be shown to be false' d-s-u-v-u-e got:7d oiled, 8d kick started, 9d run out 13d leave (etc) 11d Shavuot 12d shameless Must be dis--------. cannot find anything in dictionary. Also 26a 'deep sounds from bass instruments' o-m-a-s Done the rest so puzzled about these two clues? Help please.