Sequenced (2,1,3)
I believe the answer is:
in a row
'sequenced' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for in a row that I've seen before include "One after another" , "Consecutively" , "Like all the pretty maids" , "Forming a line" , "Paul --, Swiss artist" .)