8a.Mother and son in novel by Lawrence(8) - A - - - R - -
4d.Brief one"s put in front of court previously(7)- - - C - - -
20a.Work of art covering acceptable area,like a Van Gogh portrait?(8)
- O - A - R - L
7d.Heartlessly bitter clue for author of diabolical 11(6) - I - R - -
answer to 11 is Dictionary