Very grateful for all help with these clues please.
4dn: “Timid creature concealing mark that identifies when death is near (6).”
13ac: “Make lace to cover plain silk fabric (7).”
38dn: “Qualify to start work as a surgeon? (4,3,3).”
49ac: “Port or bitter picked up? (3).”
57ac: “One doing exercises, but no header (9).”