20a -----current, part of a clockwise-setting ocean-current system in north atlantic ocean (6) ?A?A?Y
28a shortened expression of the latin meaning a public or popular opinion (3,3) ?O?,P?P thanks...
15d term of endearment by one consuming bird (10) H?N?Y?A?ER. is it honey something?
21a isn't there much to chew over at this conference (4) D?E? thanks...