Rasp in row (4)
I believe the answer is:
file
This clue is a double definition.
'rasp' is the first definition.
(thesaurus)
'row' is the second definition.
(thesaurus)
'in' acts as a link.
(Other definitions for file that I've seen before include "Line on board" , "Set of related records kept together" , "Dossier; line of people" , "Tool to hold documents" , "Line of people, one behind the other" .)