Put in a row (5)
I believe the answer is:
align
'put in a row' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for align that I've seen before include "Put in order" , "Regulate, arrange in line" , "Dress; make straight" , "Bring into line" , "Arrange so as to be parallel" .)