Really struggling this week (What's new!). 5a Biographical deal announcements (5) ?B?T?. 13a Having a stolid and unemotional disposition (10) ?H?E???T?C 30d Chinese geometrical puzzle ??N?R?M 29a Marine mammal of North Pacific coasts formerly hunted for its fur (3,5) SEA ???E? and 40a Small edible marine decapoid crustacean. Any help appreciated!