TLS 890

[bearboy]

19d Scott character, author of the antiquary ?A?MI?N
21a Another name for Shaw R?SS

Thanks for any help
Also does anyone have the postal address for entry for this as the Times Xword site won't accept?

[Calibax]

21a Ross
T E Lawrence used John Hume Ross and T. E. Shaw as aliases

[bearboy]

Thank you Calibax!

[Calibax]

19d Marmion

[bearboy]

Thanks again Calibax

[GetOverIt]

The sender of the first correct solution opened on the third Friday after publication will receive a cash prize of £40. Entries should be addressed to TLS Crossword [insert number] or TLS Acrostic, Times House, 1 Pennington Street, London E98 IBS. The solution will be published online four weeks after publication

[NC4BBQ]

Online version says:
TLS CROSSWORD 890;
3 THOMAS MORE SQUARE;
LONDON E98 1BS