Coarse row (4)
I believe the answer is:
rank
I believe this clue is a double definition.
'coarse' is the first definition.
(thesaurus)
'row' is the second definition.
(thesaurus)
(Other definitions for rank that I've seen before include "(Taxi) stand" , "Excessive" , "Social class" , "Stinking" , "Row of people standing abreast" .)