"A little cryptic", our setters' line (6)
I believe the answer is:
course
'line' is the definition.
(I know that line can be written as course)
'a little cryptic our setters'' is the wordplay.
'a little' says the answer is hidden in the clue (a little bit of the clue).
'COURSE' is hidden within 'cryptic our setters'.
(Other definitions for course that I've seen before include "Each separate part of meal" , "fish, possibly" , "way" , "Curriculum" , "Path, track" .)