Wanderer showing a light touch during disorder (8)
I believe the answer is:
gadabout
'wanderer' is the definition.
(thesaurus)
'a light touch during disorder' is the wordplay.
'light touch' becomes 'dab' (I've seen this in another clue).
'during' means one lot of letters goes inside another.
'disorder' becomes 'gout' (gout is a kind of disease).
'a'+'dab'='adab'
'adab' put into 'gout' is 'GADABOUT'.
'showing' is the link.
(Other definitions for gadabout that I've seen before include "Person who goes around aimlessly" , "restless type" , "Vagrant" , "restless sort" , "Restless seeker after amusement" .)