Give some relief to setter rejected by editor? (6)
I believe the answer is:
emboss
'give some relief' is the definition.
'setter rejected by editor?' is the wordplay.
'setter' becomes 'me' (the setter of the clue).
'rejected' says the letters should be written in reverse.
'by' means one lot of letters go next to another.
'editor?' becomes 'boss' (editor is a type of boss).
'me' written backwards gives 'em'.
'em'+'boss'='EMBOSS'
'to' is the link.
(Other definitions for emboss that I've seen before include "Ornament with slightly raised pattern" , "Chase" , "Make a surface design in low relief" , "Make a raised design on" , "Decorate with raised design (6)" .)