Last 2 stuck again.
43d Grave rhymes, with column . 6 ltr. S-E-M-
50d Grate and toast chewy centre. 6 Ltr. -R-E-E
The E from 43d comes from 46a. Predict toll-free changes. I have VERITIES not sure if correct.
Thanks all realise I had a couple wrong, but first attempt at cryptic, husband used to do, but I lost him last year, so hopefully I do better next time.