Groove or furrow (3)
I believe the answer is:
rut
I believe this is a double definition.
'groove' is the first definition.
(I know that rut is a type of groove)
'furrow' is the second definition.
(I know that furrow can be written as rut)
(Other definitions for rut that I've seen before include "A worn groove - don't live in one" , "Groove worn by wheels" , "Wheel-made furrow" , "Does get attention during this" , "Furrow - dreary routine" .)