Bits in rows (6)
I believe the answer is:
scraps
I believe this clue is a double definition.
'bits' is the first definition.
('scrap' can be a synonym of 'bit')
'rows' is the second definition.
(I've seen this before)
'in' is the link.
(Other definitions for scraps that I've seen before include "43 [WASTE]" , "Quarrels" , "Throws away" , "Fragments left over (6)" , "Oddments - fights" .)