Stuck on left hand corner needing help please
1a/ A couple of ducks in the Med sounded like farm animals (5) no letters yet.
8a/ A morale boosting speech kept pal stimulated (3,4,) ends in k
3d/ Yearned to build a house for an Anglican cathedral boss (7) ends in y
17d In Herat Ali banned an extremist Islamic organisation (7) T?E?E?N
Thank you.