Place in a row (5)
I believe the answer is:
align
'place 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 "Straighten -bring into conformity" , "Bring into correct relation" , "Ally (oneself with)" , "Bring into line" , "Bring into agreement" .)