In the manner of (5)
'in the manner of' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for after that I've seen before include "Behind; in quest of" , "Pursuing" , "Subsequently" , "At a later time or behind" , "Subsequent to" .)
(Another definition for ala that I've seen is " side petal".)