Directed
'directed' is the definition.
(steering is a kind of directing)
This is the entire clue.
(Other definitions for steered that I've seen before include "Guided or directed, ship or plane" , "Went on a course" , "given the push" , "given guidance" , "taken the helm" .)
'directed' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for overseen that I've seen is " Supervised".)
'directed' is the definition.
('aim' can be a synonym of 'direct')
This is all the clue.
(Other definitions for aimed that I've seen before include "Planned, intended to try" , "Directed, targeted" , "Pointed a weapon at" , "Directed towards specified goal" , "Drew a bead on" .)