Would welcome help again.
21d Mourns having endlessly rued entering burial sites (7)
I have ?RE?VES.....but may well be wrong.
11a Backing atria following Rosa Parks ? (7)
Is it ROSARIA ?
12a Birdy ate small delicacy (6)
I have TITBIT is it Y ?
Thanks in advance.
I have spotted the "Chalicea Line" word, but as often, am struggling to find more.
fred