A run time reset is deliberate (8)
I believe the answer is:
ruminate
'is deliberate' is the definition.
(ruminate can mean to consider or deliberate)
'a run time reset' is the wordplay.
'reset' indicates an anagram.
'a'+'run'+'time'='aruntime'
'aruntime' with letters rearranged gives 'RUMINATE'.
(Other definitions for ruminate that I've seen before include "Cogitate" , "deliberate" , "Ponder or meditate in mature way" , "Meditate, or chew the cud" , "Muse" .)