Regard as deliberate (8)
I believe the answer is:
consider
I believe this is a double definition.
'regard' is the first definition.
(I know that regard can be written as consider)
'deliberate' is the second definition.
(I know that deliberate can be written as consider)
'as' is the link.
(Other definitions for consider that I've seen before include "Think about, reflect upon" , "Take into account" , "Go over something in one's mind" , "Deliberate" , "Hold" .)