It's less dangerous, dispersing fears (5)
I believe the answer is:
safer
'it's less dangerous' is the definition.
('safe' can be the opposite of 'dangerous' so perhaps 'safer' is reasonable for 'less dangerous')
'dispersing fears' is the wordplay.
'dispersing' indicates an anagram.
'fears' anagrammed gives 'SAFER'.
(Other definitions for safer that I've seen before include "Less endangered" , "Fears (anag)" , "Less adventurous" , "Less hazardous" , "Not so hairy" .)