Broad strip or area (5)
(Another definition for swath that I've seen is " cut in field".)
This clue is a double definition.
'broad strip' is the first definition.
(I've seen this before)
'area' is the second definition.
(I have seen 'Broad area ' mean 'swathe' so perhaps 'area' could also mean 'swathe')
(Other definitions for swathe that I've seen before include "row after reaping" , "An enveloping bandage" , "Broad strip (land)" , "Cover" , "Wrap; a cut strip" .)