Successively (2,4)
'successively' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for one at a time that I've seen before include "Singly" , "A-team, I note, travelling separately" , "Individually" .)
'successively' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for inturn that I've seen before include "One after another" , "Succesively" , "According to orderly sequence" , "One after the other, sounds rotary" , "In proper order or sequence" .)
'successively' is the definition.
(synonyms)
This is all the clue.
(Other definitions for in turn that I've seen before include "orderly treatment" , "in an orderly fashion" , "a succession of things happen" , "One after another" , "not out of place" .)