Some long ones might help:
16a Bury agreement about putting up with different beliefs (19)
The three crossing letters that I've got suggest this might be 'interdenominational', inter=bury but I can't see the rest.
37d Demanding a lounger's callous! (4,2,5)
This might be 'hard as nails' but only if snail can mean lounger, and I don't know that it can.