Struggling big time this week
11a Ancient drama exam during college year (8):
M-R-L-T-
15a Very high course (4) S-U-
16a having illness, one ignorant man drinks nothing-not even this? (5,5) -L---/D-N--
18a Pocketing a pound, departing old deputy makes room for president (4,6) O-A-/O-F---
Any help appreciated