Made less stressful (5)
I believe the answer is:
eased
'made less stressful' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for eased that I've seen before include "Died down" , "Slackened off" , "Oiled" , "Calmed" , "Relieved, mitigated" .)